Image Credits | Pathognomonic Signs of Disease

Achilles Tendon Xanthomas

4 images

Appuhamy AMRDK, et al. Familial Hypercholesterolemia Presenting as Bilateral Achilles Tendon Xanthomas and Corneal Arcus in a Young Sri Lankan Male. Case Rep Med. 2021;2021:1932763.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1155/2021/1932763

Oliva F, et al. Achilles tendon xanthomas in familial hypercholesterolemia: a systematic review. J Orthop Surg Res. 2023;18:575.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1186/s13018-023-03757-x

Alnouri M, et al. Familial Hypercholesterolemia in Saudi Arabia. Glob Heart. 2020;15(1):59.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.5334/gh.759

Köroğlu OA, et al. Homozygous familial hypercholesterolemia in a child with novel LDL receptor mutation. Orphanet J Rare Dis. 2024;19:109.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1186/s13023-024-03082-4

Adult-onset Macroglossia

4 images

Deshpande P, et al. Primary Systemic Amyloidosis Presenting as Macroglossia. Case Rep Med. 2015;2015:670369.

License: CC BY 3.0
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Source: doi.org/10.1155/2015/670369

Chebil A, et al. Macroglossia as the presenting feature of systemic AL amyloidosis. PMC. 2024;PMC11871883.

License: CC BY 4.0
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Source: pmc.ncbi.nlm.nih.gov/articles/PMC11871883/

Tao L, et al. Macroglossia as the initial manifestation of primary amyloidosis. Braz J Otorhinolaryngol. 2023;89(6):101286.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1016/j.bjorl.2023.101286

Shiratori K, et al. Macroglossia as a manifestation of systemic AL amyloidosis. J Intensive Care. 2024;12:686.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1186/s40981-024-00686-4

Amoebic Erythrophagocytosis

4 images

CDC Public Health Image Library #14544. 1966. Dr. Mae Melvin; Dr. Greene.

License: Public Domain
Modifications: None
Source: www.cdc.gov/phil/Details.aspx?pid=14544

Villegas-Gómez I, et al. Entamoeba histolytica: Pathogenesis and Virulence Mechanisms. Front Cell Infect Microbiol. 2021;11:693449.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.3389/fcimb.2021.693449

CDC Public Health Image Library #27274. Dr. Irving G. Kagan.

License: Public Domain
Modifications: None
Source: wwwn.cdc.gov/phil/Details.aspx?pid=27274

CDC Public Health Image Library #28678. 1967. Dr. Green.

License: Public Domain
Modifications: None
Source: wwwn.cdc.gov/phil/Details.aspx?pid=28678

Aschoff Bodies

4 images

Bonert M. Rheumatic heart disease histology. Wikimedia Commons. 2012.

License: CC BY-SA 3.0
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Source: en.wikipedia.org/wiki/Aschoff_body#/media/File:Rheumatic_heart_disease_-_3b_-_very_high_mag.jpg

Viera N, et al. Rheumatic Heart Disease: A Review. Diagnostics. 2023;13(20):3252.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.3390/diagnostics13203252

Uthman E. Aschoff Body in Rheumatic Myocarditis. Wikimedia Commons. 2007.

License: CC BY-SA 2.0
Modifications: None
Source: de.wikipedia.org/wiki/Aschoff-Knoten#/media/Datei:Aschoff_Body_in_Rheumatic_Myocarditis.jpg

Willaert R, et al. Acute Rheumatic Fever in an Adult: A Case Report. Cureus. 2023;15(10):e47226.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.7759/cureus.47226

Bamboo Spine

4 images

Mereyem A, et al. Bamboo Spine: A Rare Complication of Ankylosing Spondylitis. Int J Case Rep Images. 2020;11:101109Z01EM2020.

License: CC BY 4.0
Modifications: Arrows removed
Source: www.ijcasereportsandimages.com/archive/article-full-text/101109Z01EM2020

Baig MN, et al. Ankylosing Spondylitis Presenting as Bamboo Spine. Cureus. 2018;10(3):e2456.

License: CC BY 3.0
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Source: doi.org/10.7759/cureus.2456

Beaven A, et al. Bamboo spine in ankylosing spondylitis. Orthop Rheumatol Open Access J. 2019;14(1):555879.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.21767/2471-8173.100045

Md Yusoff MF, et al. Simultaneous Cervical and Lumbar Vertebral Fracture-Dislocation in an Ankylosing Spondylitis Patient. Cureus. 2025.

License: CC BY 4.0
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Source: www.cureus.com/articles/361838

Battle's Sign

3 images

Piña-Garza JE, Villasana-Salazar A. Battle's sign in basilar skull fracture. Rev Mex Neuroci. 2013;14(3).

License: CC BY-NC 3.0
Modifications: None
Source: www.scielo.org.mx/scielo.php?pid=S1870-199X2013000300006&script=sci_arttext&tlng=en

Cousins VC. Surgery for Temporal Bone Trauma. In: Atlas of Otolaryngology Head and Neck Operative Surgery. LibreTexts Medicine. 2023.

License: CC BY-NC 3.0
Modifications: None
Source: med.libretexts.org/Bookshelves/Anatomy_and_Physiology/Atlas_of_Otolaryngology_Head_and_Neck_Operative_Surgery/02%3A_Otology/2.16%3A_Surgery_for_Temporal_Bone_Trauma

Tinss. Battle's sign photograph. Wikimedia Commons. 2023.

License: CC BY-SA 4.0
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Source: commons.wikimedia.org/w/index.php?curid=166599553

Bilateral Anterior Lenticonus

4 images

Halawani MA, et al. Bilateral Anterior Lenticonus in Alport Syndrome. Cureus. 2021;13(2):e12970.

License: CC BY 4.0
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Source: dx.doi.org/10.7759/cureus.12970

Jinagal J, et al. Bilateral anterior lenticonus in Alport syndrome. Indian J Ophthalmol. 2018;66(9):1349–1350.

License: CC BY-NC-SA 4.0
Modifications: None
Source: doi.org/10.4103/ijo.IJO_400_18

Sedaghat A, et al. Alport syndrome with anterior lenticonus. Medicine (Baltimore). 2019;98(41):e17054.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1097/MD.0000000000017054

Sargazi N, et al. Alport Syndrome Presenting with Anterior Lenticonus. Cureus. 2023;15(10):e47373.

License: CC BY 4.0
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Source: doi.org/10.7759/cureus.47373

Bilateral Conjunctival Suffusion

2 images

Patel R, et al. Leptospirosis Presenting with Bilateral Conjunctival Suffusion. Cureus. 2023;15(6):e39083.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.7759/cureus.39083

Cerevisae. Conjunctival suffusion of the eyes due to leptospirosis. Wikimedia Commons. 2019.

License: CC BY 4.0
Modifications: None
Source: commons.wikimedia.org/wiki/File%3AConjunctival_suffusion_of_the_eyes_due_to_leptospirosis.jpg

Bird's Beak Sign

4 images

Chapagain S, et al. Bird's beak sign in achalasia cardia. JNMA J Nepal Med Assoc. 2024;62(270):e8649.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.31729/jnma.8649

Xiao Y, Pandolfino JE. Achalasia: pathophysiology and diagnosis. J Xiangya Med. 2019;4:5080.

License: CC BY-NC-ND 4.0
Modifications: None
Source: jxym.amegroups.org/article/view/5080/html

Bhamrah G, et al. Achalasia presenting with bird's beak sign. Cureus. 2020;12(3):e7379.

License: CC BY 4.0
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Source: doi.org/10.7759/cureus.7379

Gupta P, et al. Achalasia cardia: a review. Indian J Radiol Imaging. 2015;25(3):299–307.

License: CC BY-NC-SA 4.0
Modifications: None
Source: doi.org/10.4103/0971-3026.161465

Bitot's Spots

2 images

Crum AV, et al. Bitot's spots and vitamin A deficiency. Case Rep Ophthalmol. 2018;9(1):1–5.

License: CC BY-NC 4.0
Modifications: None
Source: doi.org/10.1159/000485235

CDC Public Health Image Library #1701. Bitot's spots in vitamin A deficiency.

License: Public Domain
Modifications: None
Source: wwwn.cdc.gov/phil/Details.aspx?pid=1701

Blood Vessel Onion-Skinning

2 images

Batal I, et al. Renal vascular pathology in lupus nephritis. Am J Kidney Dis. 2010;56(6):1109–1121.

License: CC BY 3.0
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Source: pubmed.ncbi.nlm.nih.gov/20981312/

Balatsos V, et al. Onion-skin lesions in malignant hypertension. PMC. 2024;PMC11543382.

License: CC BY 4.0
Modifications: None
Source: pmc.ncbi.nlm.nih.gov/articles/PMC11543382/

Blue-Dot Sign

1 image

Vicente Zapata E, et al. Blue dot sign in testicular torsion of the appendix testis. Eurorad. 2016;Case 14271.

License: CC BY-NC-SA 4.0
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Source: www.eurorad.org/case/14271

Bright Orange Tonsils

2 images

Alshaikhli A, Vaqar S. Tangier Disease. In: StatPearls. Treasure Island (FL): StatPearls Publishing; 2023.

License: CC BY-NC-ND 4.0
Modifications: None
Source: www.ncbi.nlm.nih.gov/books/NBK562250/figure/article-34469.image.f1/

Uehara Y, et al. Tangier disease: a case report and review of the literature. In: Lipoproteins. InTech; 2011.

License: CC BY 3.0
Modifications: None
Source: doi.org/10.5772/17516

Bucket-handle Fracture

3 images

Colleran G, et al. Bucket-handle fractures in child abuse. Eur Radiol. 2025;35:1234–1242.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.1007/s00330-024-11052-4

Offiah AC, et al. Radiological appearances of fractures in non-accidental injury. Pediatr Radiol. 2009;39(Suppl 2):S227–S233.

License: CC BY-NC 2.0
Modifications: None
Source: doi.org/10.1007/s00247-009-1157-1

Wu J, et al. Classic metaphyseal lesions in non-accidental trauma. Radiol Adv. 2025;2:umae018.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1093/radadv/umae018

Burrows

3 images

Scanni G. Scabies burrows: dermoscopic features. PMC. 2019;PMC6473440.

License: CC BY 4.0
Modifications: None
Source: pmc.ncbi.nlm.nih.gov/articles/PMC6473440/

Nie X, et al. Scabies: clinical features and management. Front Med. 2023;10:1097999.

License: CC BY 4.0
Modifications: Cropped
Source: www.frontiersin.org/journals/medicine/articles/10.3389/fmed.2023.1097999/full

Geary M. Scabies burrow photograph. Wikimedia Commons. 2006.

License: Public Domain
Modifications: None
Source: commons.wikimedia.org/wiki/File%3AScabies-burrow.jpg

Burton's Line

4 images

Karami M, et al. Burton's line on the gum seen in lead poisoning among petroleum refinery workers in Kirkuk City, Iraq: a case series. Cureus. 2024.

License: CC BY 4.0
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Source: www.cureus.com/articles/252683

Yang X, et al. Lead poisoning presenting with Burton's line. BMC Gastroenterol. 2020;20:348.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1186/s12876-020-01482-x

Yang X, et al. Lead poisoning presenting with Burton's line. BMC Gastroenterol. 2020;20:348.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1186/s12876-020-01482-x

Banagozar Mohammadi A, et al. Burton's line: a rare finding in lead poisoning. Clin Case Rep. 2021;9(6):e04101.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1002/ccr3.5101

Café au Lait Spots

4 images

Horn D, et al. Café-au-lait spots in neurofibromatosis type 1. Eur J Med Genet. 2024.

License: CC BY 4.0
Modifications: Cropped
Source: europepmc.org/article/MED/39258154

Fale A, et al. Café-au-lait macules: a diagnostic clue. Nepal J Dermatol Venereol Leprol. 2025;23(2).

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.3126/njdvl.v23i2.77040

McLarney M, et al. Café-au-lait macules in a patient with NF1. JAAD Case Rep. 2022;28:25–27.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1016/j.jdcr.2022.08.025

Hasanain M, et al. Neurofibromatosis type 1 with café-au-lait spots. Cureus. 2023;15(8):e42581.

License: CC BY 3.0
Modifications: None
Source: doi.org/10.7759/cureus.42581

Call–Exner Bodies

4 images

Suzuki T, et al. Granulosa cell tumor with Call–Exner bodies. J Ovarian Res. 2023;16:38.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1186/s44215-023-00038-1

Koganezawa I, et al. Adult granulosa cell tumor of the ovary. Surg Case Rep. 2020;6:80.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1186/s40792-020-00880-3

Sumitra S, et al. Granulosa cell tumor: a clinicopathological study. J Pathol Transl Med. 2015;49(1):70–75.

License: CC BY-NC 3.0
Modifications: None
Source: doi.org/10.4132/jptm.2014.04.02

Sumitra S, et al. Granulosa cell tumor: a clinicopathological study. J Pathol Transl Med. 2015;49(1):70–75.

License: CC BY-NC 3.0
Modifications: None
Source: doi.org/10.4132/jptm.2014.04.02

Casal's Necklace

4 images

CDC Public Health Image Library #3757. Casal's necklace in pellagra. 1970.

License: Public Domain
Modifications: None
Source: wwwn.cdc.gov/phil/Details.aspx?pid=3757

Bhat RM. A case of classical Casal's necklace in a 12-year-old boy. Image J. 2014.

License: CC BY 4.0
Modifications: None
Source: www.imagejournals.org/articles/a-case-of-classical-casals-necklace-in-an-year-old-boy.pdf

Isaacs M, Lehloenya RJ. Pellagra presenting with Casal's necklace. Front Allergy. 2023;4:1159387.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.3389/falgy.2023.1159387

Ryali B, et al. Steroid-resistant rash with neuropsychiatric deterioration and weight loss: a modern-day case of pellagra. Cureus. 2025.

License: CC BY 4.0
Modifications: None
Source: www.cureus.com/articles/403648

Chorioretinal Lacunae

2 images

Sirek T, et al. Chorioretinal lacunae in Aicardi syndrome. Medicine (Baltimore). 2022;101(24):e31950.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.1097/MD.0000000000031950

Sharma P, et al. Aicardi syndrome: chorioretinal lacunae on fundus examination. Digit J Ophthalmol. 2026.

License: CC BY-NC-ND 4.0
Modifications: None
Source: djo.harvard.edu/index.php/djo/article/view/1166

Choroid Tubercle

4 images

Attiku Y, Rishi P. Miliary tuberculosis presenting as bilateral pseudo-retinoblastoma. GMS Ophthalmol Cases. 2021;11:Doc12.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.3205/oc000185

Annamalai R, Biswas J. Bilateral choroidal tuberculoma in miliary tuberculosis — report of a case. J Ophthal Inflamm Infect. 2015;5:4.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1186/s12348-014-0032-x

Jain T, et al. Bilateral choroidal tuberculoma in a patient of miliary tuberculosis. J Ophthal Inflamm Infect. 2025;15:77.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1186/s12348-025-00509-2

Lekha T, Karthikeyan R. Multimodal imaging of choroidal tubercles. Indian J Ophthalmol. 2018;66(7):995–996.

License: CC BY-NC-SA 4.0
Modifications: None
Source: doi.org/10.4103/ijo.IJO_155_18

Christmas Tree Rash

3 images

Oya AS, et al. Pityriasis rosea with Christmas tree distribution. Cureus. 2024;16(1):e52052.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.7759/cureus.52052

Hellerman J. Pityriasis rosea photograph. Wikimedia Commons. 2011.

License: CC BY-SA 3.0
Modifications: None
Source: commons.wikimedia.org/wiki/File%3APityriasisrosa.png

Ashayer A, et al. Pityriasis rosea: a review of the clinical features. Indian Dermatol Online J. 2018;9(1):13–18.

License: CC BY-NC-SA 4.0
Modifications: None
Source: doi.org/10.4103/idoj.IDOJ_135_17

Circinate Balanitis

2 images

Freadenough. Balanitis circinata. Wikimedia Commons. 2019.

License: CC BY-SA 4.0
Modifications: None
Source: commons.wikimedia.org/wiki/File:Balanitis_circinata.png

Panigrahi A, et al. Circinate balanitis in reactive arthritis. Indian Dermatol Online J. 2021;12(3):468–469.

License: CC BY-NC-SA 4.0
Modifications: None
Source: doi.org/10.4103/idoj.IDOJ_738_20

Colpitis Macularis (Strawberry Cervix)

3 images

Bicha WA, Arefeayinie A. Colpitis macularis (strawberry cervix) in trichomoniasis. Gynecol Obstet Open Access. 2023;4:046.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.33696/Gynaecology.4.046

Gashi V. Strawberry cervix in vaginal trichomoniasis. Health J Clin Res. 2017;1:001.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.29328/journal.hjcr.1001001

Mishra S, et al. Colpitis macularis in trichomoniasis. Indian J Sex Transm Dis AIDS. 2024;45(1).

License: CC BY-NC-SA 4.0
Modifications: Cropped
Source: doi.org/10.4103/ijstd.ijstd_70_22

Corkscrew Hairs with Perifollicular Hemorrhaging

4 images

Shah A, et al. Scurvy presenting with corkscrew hairs and perifollicular hemorrhage. Case Rep Med. 2021;2021:5519937.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1155/2021/5519937

Souza FHC, et al. Scurvy: corkscrew hairs and perifollicular hemorrhage. An Bras Dermatol. 2021;96(1):112–114.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1016/j.abd.2020.03.024

Du Y, et al. Scurvy in an adult presenting with corkscrew hairs. Cureus. 2024;16(4):e58782.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.7759/cureus.58782

Abe-Ridgeway A, Leach S. Scurvy with corkscrew hairs and perifollicular hemorrhage. Clin Exp Dermatol Ther. 2025.

License: CC BY-NC-ND 4.0
Modifications: None
Source: doi.org/10.1007/s44337-025-00239-3

Crowe's Sign (Axillary Freckling)

4 images

Ozarslan B, et al. Cutaneous manifestations of neurofibromatosis type 1. Cancers. 2021;13(3):463.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.3390/cancers13030463

Serra E, et al. Axillary freckling in neurofibromatosis type 1. Ital J Pediatr. 2019;45:71.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.1186/s13052-019-0718-7

Cohen PR. Crowe's sign in neurofibromatosis type 1. Cureus. 2021;13(3):e14258.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.7759/cureus.14258

DermNetNZ. Axillary freckling in neurofibromatosis. DermNetNZ Image Library. 2020.

License: CC BY-NC-ND 4.0
Modifications: None
Source: dermnetnz.org/imagedetail/16367-axillary-freckling-in-neurofibromatosis

Dendritic Keratitis

5 images

Yokogawa H, et al. Dendritic keratitis in herpes simplex virus infection. Clin Ophthalmol. 2015;9:1575–1580.

License: CC BY-NC 3.0
Modifications: None
Source: doi.org/10.2147/OPTH.S92517

Greenan E, et al. Herpes simplex keratitis: pathogenesis and management. Viruses. 2021;13(9):1856.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.3390/v13091856

Welder JD, et al. Herpes simplex virus dendritic keratitis. EyeRounds.org. 2012.

License: CC BY-NC-ND 3.0
Modifications: None
Source: eyerounds.org/cases/160-HSV.htm

Zhu L, Zhu H. Ocular herpes: the pathophysiology, management and treatment of herpetic eye diseases. Virol Sin. 2014;29(6):327–342.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1007/s12250-014-3539-2

Ying L, et al. Human herpesvirus 7 epithelial keratitis with geographic-dendritic ulceration. BMC Infect Dis. 2025;26(1):149.

License: CC BY-NC-ND 4.0
Modifications: None
Source: doi.org/10.1186/s12879-025-12437-6

Dermatitis Herpetiformis

4 images

Antiga E, et al. Dermatitis herpetiformis: novel perspectives. Front Immunol. 2019;10:1290.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.3389/fimmu.2019.01290

Reunala T, et al. Dermatitis herpetiformis: pathognomonic transglutaminase IgA deposits. Am J Clin Dermatol. 2021;22(3):329–338.

License: CC BY-NC 4.0
Modifications: None
Source: doi.org/10.1007/s40257-020-00584-2

Reunala T, et al. Dermatitis herpetiformis: pathognomonic transglutaminase IgA deposits. Am J Clin Dermatol. 2021;22(3):329–338.

License: CC BY-NC 4.0
Modifications: None
Source: doi.org/10.1007/s40257-020-00584-2

Antiga E, et al. Dermatitis herpetiformis: novel perspectives. Front Immunol. 2019;10:1290.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.3389/fimmu.2019.01290

Donovan Bodies

4 images

CDC Public Health Image Library #18899. 1978. Susan Lindsey.

License: Public Domain
Modifications: None
Source: wwwn.cdc.gov/phil/Details.aspx?pid=18899

Belda W Jr. Donovanosis. An Bras Dermatol. 2020;95(6):675–683.

License: CC BY 4.0
Modifications: Cropped and upscaled
Source: doi.org/10.1016/j.abd.2020.07.002

Hajare SS, et al. Donovan bodies in granuloma inguinale. J Clin Diagn Res. 2019;13(4):ED01–ED02.

License: CC BY-NC-ND 4.0
Modifications: None
Source: doi.org/10.7860/JCDR/2019/39500/12790

Balakrishnan S, Vijayan S. Donovan bodies in granuloma inguinale. World J Womens Child Health. 2023.

License: CC BY-NC-SA 4.0
Modifications: Arrows removed
Source: doi.org/10.25259/WJWCH_29_2023

Electrical Alternans

5 images

Aldridge J, et al. Electrical alternans in cardiac tamponade. Cureus. 2024;16(3):e54677.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.7759/cureus.54677

Rosser B, et al. Electrical alternans in pericardial effusion. Eur Heart J Case Rep. 2025;9:ytaf055.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1093/ehjcr/ytaf055

Harahap IA, et al. Electrical alternans in cardiac tamponade. IOP Conf Ser Earth Environ Sci. 2018;125:012120.

License: CC BY 3.0
Modifications: None
Source: doi.org/10.1088/1755-1315/125/1/012120

Hellerman J. Electrical alternans ECG. Wikimedia Commons. 2011.

License: CC BY-SA 3.0
Modifications: None
Source: commons.wikimedia.org/wiki/File%3AElectrical_Alternans.JPG

Miravent S, Ruiz JM, Molina NB, et al. Prehospital Detection of a Large Pericardial Effusion Using Screening Sonography: A Case Report. Cureus. 2025;17(12):e98471.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.7759/cureus.98471

Eosinophiluria

2 images

Brito GA, et al. Eosinophiluria in acute interstitial nephritis. Allergy Asthma Clin Immunol. 2014;10:61.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1186/s13223-014-0061-x

Saadia A, et al. Eosinophiluria as a biomarker of acute interstitial nephritis. Front Immunol. 2025;16:1720992.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.3389/fimmu.2025.1720992

Erythema Migrans

7 images

Schotthoefer AM, et al. Clinical presentations of Lyme disease. Cureus. 2022;14(11):e30673.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.7759/cureus.30673

Schotthoefer AM, et al. Clinical presentations of Lyme disease. Cureus. 2022;14(11):e30673.

License: CC BY 4.0
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Source: doi.org/10.7759/cureus.30673

Schotthoefer AM, et al. Clinical presentations of Lyme disease. Cureus. 2022;14(11):e30673.

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Source: doi.org/10.7759/cureus.30673

CDC Public Health Image Library #9875. 2007. James Gathany.

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Source: wwwn.cdc.gov/phil/Details.aspx?pid=9875

CDC Public Health Image Library #28369. 2023. Lauren Bishop.

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Source: wwwn.cdc.gov/phil/Details.aspx?pid=28369

Marques AR, Strle F, Wormser GP. Comparison of Lyme disease in the United States and Europe. Emerg Infect Dis. 2021;27(8):2017.

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Source: doi.org/10.3201/eid2708.204763

Koide Y. Amblyomma tick photograph. Wikimedia Commons. 2017.

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Source: commons.wikimedia.org/wiki/File%3AAmblyomma.DSC_1161.jpg

Figure 3 Sign

5 images

Bishal KC, et al. Coarctation of aorta in a young female with extensive collaterals presenting with secondary hypertension. Nepalese Heart J. 2022;19(2):55–58.

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Source: doi.org/10.3126/njh.v20i2.48872

Henzel AW, Schwerzmann M. Figure of 3-sign: a case report. Eur Heart J Case Rep. 2018;3(1):yty162.

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Source: doi.org/10.1093/ehjcr/yty162

Agasthi P, et al. Management of adults with coarctation of aorta. World J Cardiol. 2020;12(5):167–191.

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Source: doi.org/10.4330/wjc.v12.i5.167

Gutiérrez Rangel V, et al. Hypertension Secondary to Severe Aortic Coarctation in an Adult Patient. Cureus. 2025;17(6):e86128.

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Source: www.cureus.com/articles/371034

Thodi Ramamurthy M, Balakrishnan VK, David SAN, Korrapati HS. Congenital kinking of aorta. BMJ Case Rep. 2017;2017:bcr2017220896.

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Source: doi.org/10.1136/bcr-2017-220896

Giant Cytoplasmic Granules

4 images

Gopaal N, Sharma JN, Agrawal V, Lora SS, Jadoun LS. Chediak-Higashi Syndrome With Epstein-Barr Virus Triggered Hemophagocytic Lymphohistiocytosis: A Case Report. Cureus. 2020 Nov 13;12(11):e11467. doi: 10.7759/cureus.11467. PMID: 33329964; PMCID: PMC7733776.

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Source: doi.org/10.7759/cureus.11467

Rajyalakshmi R, Kusa Raju P. Role of Morphology in the Diagnosis of an Unsuspected Case of Chediak-Higashi Syndrome: A Case Report. Cureus. 2024 Dec 4;16(12):e75128. doi: 10.7759/cureus.75128. PMID: 39759654; PMCID: PMC11700029.

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Source: doi.org/10.7759/cureus.75128

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Varón CR, Suárez-Gómez SA, Varón D, Gómez Flórez L, Cortes-Urrea C, Vélez Colmenares EG and Corona I (2026) Case Report: A converging pathology: Chediak–Higashi syndrome and IEI-associated lymphoproliferative disease. Front. Hematol. 4:1650494. doi: 10.3389/frhem.2025.1650494

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Source: dx.doi.org/10.3389/frhem.2025.1650494

Globoid Cells

2 images

Reddy AS, Patel JR, Vogler C, Klein RS, Sands MS (2013) Central Nervous System Pathology Progresses Independently of KC and CXCR2 in Globoid-Cell Leukodystrophy. PLoS ONE 8(6): e64647. https://doi.org/10.1371/journal.pone.0064647

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Source: doi.org/10.1371/journal.pone.0064647

Wikipedia "Krabbe disease"

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Source: commons.wikimedia.org/wiki/File%3AGloboid_cell_leukodystrophy_PAS.jpg

Gottron's Papules

4 images

Castro L, Valdebran M, Meléndez KG, Cristales J, Cerritos LE. Dermoscopy of nailfold capillaries and Gottron's papules in a 15-year-old patient. JAAD Case Rep. 2025 Feb 27;59:26-27. doi: 10.1016/j.jdcr.2024.12.038. PMID: 40225086; PMCID: PMC11992395.

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Source: doi.org/10.1016/j.jdcr.2024.12.038

Habibullah T, Habibullah A, Simsim R. Skin Manifestations of Rheumatological Diseases. 2021 Jan 6. In: Almoallim H, Cheikh M, editors. Skills in Rheumatology [Internet]. Singapore: Springer; 2021. Fig. 15.12, [Gottron's papules. Flat-topped papules over...]. Available from: https://www.ncbi.nlm.nih.gov/books/NBK585749/figure/ch15.Fig12/ doi: 10.1007/978-981-15-8323-0_15

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Source: www.ncbi.nlm.nih.gov/books/NBK585749/figure/ch15.Fig12/

Lim JL, Yusof NS, Md Tarekh NA, Abdul Rahman R. Dermatomyositis Anteceding Lung Adenocarcinoma. Cureus. 2020 Nov 19;12(11):e11580. doi: 10.7759/cureus.11580. PMID: 33364104; PMCID: PMC7749829.

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Broad EO. Rapid Progression of Dermatomyositis in an Elderly Patient With Oropharyngeal and Pulmonary Involvement: A Case Report. Cureus. 2025 May 17;17(5):e84267. doi: 10.7759/cureus.84267. PMID: 40525043; PMCID: PMC12168830.

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Granulation Tissue in the External Auditory Canal

2 images

Raman NC, Sreedharan T, Varkey AP. Clinical Profile of Patients with Malignant Otitis Externa in a Tertiary Care Centre. Journal of Evidence Based Medicine and Healthcare. 2020;7:3022-3026. doi: 10.18410/jebmh/2020/617.

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Source: doi.org/10.18410/jebmh/2020/617

Rout MR, Krishna Prakash SS, Laxmi PSVS, Arshad. A clinical study on malignant otitis externa. IOSR J Dent Med Sci. 2021 Aug;20(8 Ser. 3):51-56. doi:10.9790/0853-2008035156.

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Source: iosrjournals.org/iosr-jdms/papers/Vol20-issue8/Ser-3/J2008035156.pdf

Granulomatosis Infantiseptica

2 images

Kim YK, Jin JH, Kim YJ, Yoon SW, Lee SH. Neonatal Listeriosis with Granulomatosis Infantiseptica: A Case Report. Perinatology. 2023 Sep;34(3):135-139. https://doi.org/10.14734/PN.2023.34.3.135

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Source: doi.org/10.14734/PN.2023.34.3.135

Kim YK, Jin JH, Kim YJ, Yoon SW, Lee SH. Neonatal Listeriosis with Granulomatosis Infantiseptica: A Case Report. Perinatology. 2023 Sep;34(3):135-139. https://doi.org/10.14734/PN.2023.34.3.135

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Source: doi.org/10.14734/PN.2023.34.3.135

Heliotrope Rash

4 images

Al-Janobi G, Alkhalidi H, Omair MA. Unilateral heliotrope rash in juvenile dermatomyositis: an unusual presentation of an underlying serious disease. Case Rep Rheumatol. 2014;2014:979856. doi: 10.1155/2014/979856. Epub 2014 Dec 22. PMID: 25587479; PMCID: PMC4283393.

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Source: doi.org/10.1155/2014/979856

Sanz-Correa J, Cobo-Ibáñez T, Prats Caelles I. Cutaneous manifestations in idiopathic inflammatory myopathies. J IM. 2022;2(3):76-86. doi:10.24875/JIMIDS.M22000020.

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Source: doi.org/10.24875/JIMIDS.M22000020

Saleh ZF, Saleh Z. Anti-NXP2 antibody positive dermatomyositis presenting as unilateral heliotrope rash. JAAD Case Rep. 2024 May 18;50:25-29. doi: 10.1016/j.jdcr.2024.05.015. PMID: 39036619; PMCID: PMC11259984.

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Source: doi.org/10.1016/j.jdcr.2024.05.015

Dugan EM, Huber AM, Miller FW, Rider LG. Photoessay of the cutaneous manifestations of the idiopathic inflammatory myopathies. Dermatology online journal. 2009 Feb 1;15(2).

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Source: doi.org/10.5070/D31f04d17z

Hepatic Daughter Cysts

4 images

Alshoabi SA, Alkalady AH, Almas KM, et al. Hydatid Disease: A Radiological Pictorial Review of a Great Neoplasms Mimicker. Diagnostics (Basel). 2023 Mar 16;13(6):1127. doi: 10.3390/diagnostics13061127. PMID: 36980435; PMCID: PMC10047450.

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Source: www.mdpi.com/2075-4418/13/6/1127#

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Source: www.mdpi.com/2075-4418/13/6/1127#

Yuksel M, Demirpolat G, Sever A, Bakaris S, Bulbuloglu E, Elmas N. Hydatid Disease Involving Some Rare Locations in the Body: a Pictorial Essay. Korean J Radiol. 2007 Nov-Dec;8(6):531-540. https://doi.org/10.3348/kjr.2007.8.6.531

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Source: doi.org/10.3348/kjr.2007.8.6.531

Kim AR, Park SJ, Gu MJ, Choi JH, Kim HJ. Fine Needle Aspiration Cytology of Hepatic Hydatid Cyst: A Case Study. J Pathol Transl Med. 2013;47(4):395-398.

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Source: doi.org/10.4132/KoreanJPathol.2013.47.4.395

Herbert's Pits

3 images

Dr. Thomas Oetting, EyeRounds.org University of Iowa @eyerounds on Instagram

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Source: webeye.ophth.uiowa.edu/eyeforum/atlas/pages/herberts-pits.htm

Dr. Thomas Oetting, EyeRounds.org University of Iowa @eyerounds on Instagram

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Source: webeye.ophth.uiowa.edu/eyeforum/atlas/pages/classic-Herberts-pits-in-trachoma.html

Gupta N, Yadav S, Solomon AW, Jain S, Kashyap S, Vanathi M, Tandon R. Atypical Corneal Phenotype in Patients With Trachoma and Secondary Amyloidosis. Cornea. 2022 May 1;41(5):609-615. doi: 10.1097/ICO.0000000000002791. PMID: 34176916; PMCID: PMC8969838.

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Source: doi.org/10.1097/ICO.0000000000002791

Howell–Jolly Bodies

2 images

Kojima S, Hiraoka E, Ehara J, Suzuki T, Nakatsuru E, Norisue Y. Streptococcus pneumoniae induced purpura fulminans in a patient with splenic hypoplasia. Int J Case Rep Images 2017;8(10):634–638.

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Source: doi.org/10.5348/ijcri-201797-CR-10836

Pu D, Liu L, Wang N, Wang D, Zhang Z, Feng B. Case report: Single-cell mapping of peripheral blood mononuclear cells from a patient with both Crohn's disease and isolated congenital asplenia. Front Immunol. 2022 Aug 26;13:959281. doi: 10.3389/fimmu.2022.959281. PMID: 36091029; PMCID: PMC9459022.

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Source: doi.org/10.3389/fimmu.2022.959281

Hutchinson's Notched Teeth

4 images

CDC Public Health Image Library #2385

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CDC Public Health Image Library #12599

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Source: wwwn.cdc.gov/phil/Details.aspx?pid=12599

Garcia LN, Destito Solján A, Moroni S, Falk N, Gonzalez N, Moscatelli G, et al. (2021) Congenital syphilis in Argentina: Experience in a pediatric hospital. PLoS Negl Trop Dis 15(1): e0009010. https://doi.org/10.1371/journal.pntd.0009010

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Source: doi.org/10.1371/journal.pntd.0009010

Wikipedia

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Source: commons.wikimedia.org/w/index.php?curid=84010508

Hutchinson's Sign

4 images

Ozdemir F, Errico MA, Yaman B, Karaarslan I. Acral lentiginous melanoma in the Turkish population and a new dermoscopic clue for the diagnosis. Dermatol Pract Concept. 2018;8(2)140-148. DOI: https://doi.org/10.5826/dpc.0802a14

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Source: doi.org/10.5826/dpc.0802a14

Caraviello C, Nazzaro G, Tavoletti G, et al. Melanoma Skin Cancer: A Comprehensive Review of Current Knowledge. Cancers. 2025;17(17):2920. https://doi.org/10.3390/cancers17172920

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Source: doi.org/10.3390/cancers17172920

Jaramillo-Arboleda A, Torres-Calderón MF, Piscazzi F, et al. Hutchinson's Sign without Melanonychia: a Key for the Diagnosis of Invasive Melanoma of the Nail Matrix. Dermatol Pract Concept. 2025;15(4):5888. DOI: https://doi.org/10.5826/dpc.1504a5888

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Source: doi.org/10.5826/dpc.1504a5888

Ito T, Hashimoto H, Kaku-Ito Y, Tanaka Y, Nakahara T. Nail Apparatus Melanoma: Current Management and Future Perspectives. J Clin Med. 2023 Mar 12;12(6):2203. doi: 10.3390/jcm12062203. PMID: 36983205; PMCID: PMC10057171.

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Source: doi.org/10.3390/jcm12062203

Hyper Sister Chromatid Exchange

4 images

Killen MW, et al. Escherichia coli RecG functionally suppresses human Bloom syndrome phenotypes. BMC Mol Biol. 2012;13:33.

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Source: doi.org/10.1186/1471-2199-13-33

Almendra M, et al. Recurrent infections and short stature — Listening may be the key. A Bloom syndrome case report. Port J Pediatr. 2024;55(3):193–198.

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Source: doi.org/10.24875/PJP.M24000448

Masmoudi A, et al. Clinical and laboratory findings in 8 patients with Bloom's syndrome. J Dermatol Case Rep. 2012;6(1):29–33.

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Source: doi.org/10.3315/jdcr.2012.1086

Huson SM, et al. Infantile fibrosarcoma with TPM3-NTRK1 fusion in a boy with Bloom syndrome. Fam Cancer. 2022;21:85–90.

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Source: doi.org/10.1007/s10689-020-00221-1

Inflammation of the Distal Interphalangeal Joint

2 images

Eichhoff G, Harun NS. Psoriatic Arthritis and Nail Psoriasis in a Patient with Concomitant Atopic Dermatitis. Case Rep Dermatol Med. 2018 Feb 18;2018:4125856. doi: 10.1155/2018/4125856. PMID: 29670773; PMCID: PMC5835295.

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Source: doi.org/10.1155/2018/4125856

Akeda T, Yamanaka K. Treatment in Patients with Psoriatic Disease and Rheumatoid Arthritis: Seven Case Reports. Clinics and Practice. 2023;13(1):177-189. https://doi.org/10.3390/clinpract13010016

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Source: doi.org/10.3390/clinpract13010016

Iris Pearls

2 images

Katoch S, Chandel T, Tuli R, Sharma G, Chauhan PS, Minhas N. Ocular manifestations of leprosy in a tertiary health care centre in Northern India. Leprosy Review. 2025;96(3). DOI: 10.47276/lr.96.3.2025069

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Source: doi.org/10.47276/lr.96.3.2025069

Ahluwalia NS, Choudhary P, Shakya R, Revankar A. Unmasking Hansen's disease through an ophthalmologist's eye. Indian J Ophthalmol. 2022;70:2671–3.

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Source: doi.org/10.4103/ijo.IJO_2157_21

Keratoderma Blennorrhagicum

2 images

Alexander S, Kim E, Mandhadi R (February 25, 2021) Approaching Reactive Arthritis Associated With Poor Prognostic Factors: A Case Report and Literature Review. Cureus 13(2): e13555. doi:10.7759/cureus.13555

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Source: doi.org/10.7759/cureus.13555

Gupta V, Mohta P, Sharma VK, Khanna N. A retrospective case series of 12 patients with chronic reactive arthritis with emphasis on treatment outcome with biologics. Indian J Dermatol Venereol Leprol 2021;87:227-34. doi: 10.4103/ijdvl.IJDVL_519_18

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Source: doi.org/10.4103/ijdvl.IJDVL_519_18

Kimmelstiel–Wilson Nodules

2 images

CDC Public Health Image Library #36

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Jiang S, Di D, Jiao Y, Zou G, Gao H and Li W (2022) Complement Deposition Predicts Worsening Kidney Function and Underlines the Clinical Significance of the 2010 Renal Pathology Society Classification of Diabetic Nephropathy. Front. Immunol. 13:868127. doi: 10.3389/fimmu.2022.868127

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Source: doi.org/10.3389/fimmu.2022.868127

Koilocytes

4 images

Kamal M. Cervical pre-cancers: Biopsy and immunohistochemistry. CytoJournal 2022;19:38. doi: 10.25259/CMAS_03_13_202

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Source: cytojournal.com/cervical-pre-cancers-biopsy-and-immunohistochemistry/

Kamal M. Cervical pre-cancers: Biopsy and immunohistochemistry. CytoJournal 2022;19:38. doi: 10.25259/CMAS_03_13_202

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Source: cytojournal.com/cervical-pre-cancers-biopsy-and-immunohistochemistry/

Kamal M. Cervical pre-cancers: Biopsy and immunohistochemistry. CytoJournal 2022;19:38. doi: 10.25259/CMAS_03_13_202

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Source: cytojournal.com/cervical-pre-cancers-biopsy-and-immunohistochemistry/

Njoumi N, Tarchouli M, Ratbi MB, et al. La tumeur de Buschke-Lowenstein anorectale: à propos de 16 cas et revue de la littérature. Pan Afr Med J. 2013 Dec 8;16:131. doi: 10.11604/pamj.2013.16.131.2864. PMID: 24847393; PMCID: PMC4024435.

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Source: www.panafrican-med-journal.com//content/article/16/131/full

Koplik's Spots

4 images

CDC Public Health Image Library #24424

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Source: wwwn.cdc.gov/phil/Details.aspx?pid=24424

Mancy A. Koplik's spots. Our Dermatol Online. 2023;14(4):448.

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Source: doi.org/10.7241/ourd.20234.23

Tran HM, Nguyen TL, Le DM. Fever with vesiculopapular eruptions mimicking varicella: an atypical presentation of measles in an unvaccinated adult. MedPharmRes. 2025;9(4):525-31.

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Source: doi.org/10.32895/MPR.25.00082

Zhang Y, Yu YS, Zang GQ. Maculopapular rash and Koplik's spots in adult measles. Revista da Sociedade Brasileira de Medicina Tropical. 2015 Mar;48:231-.

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Source: doi.org/10.1590/0037-8682-0236-2014

Larva Currens

2 images

Gardini G, Froeschl G, Puzzi PR, Gambino S, Erne EM. Dermatological Presentation of Strongyloides stercoralis Infection in Two Elderly Italian Inpatients. Pathogens. 2024;13(8):658. https://doi.org/10.3390/pathogens13080658

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Source: doi.org/10.3390/pathogens13080658

Corte LD, da Silva MV, Souza PR. Simultaneous Larva Migrans and Larva Currens Caused by Strongyloides stercoralis: A Case Report. Case Rep Dermatol Med. 2013;2013:381583. doi: 10.1155/2013/381583. Epub 2013 Feb 17. PMID: 23476820; PMCID: PMC3588403.

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Source: doi.org/10.1155/2013/381583

Lead Pipe Sign

2 images

Wikipedia "Toxic megacolon" article

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Source: commons.wikimedia.org/w/index.php?curid=18481740

Pediatric Imaging "Teenager with abdominal pain" post

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Source: pediatricimaging.org/2021/07/07/teenager-with-abdominal-pain-5/

Lichtenberg Figures

4 images

George N, Bandi S, Ganti L, Umansky A, Desai B. Bounced off a Truck Out of the Blue: A Case Report of a Lightning Strike During a Thunderstorm. Cureus. 2020 Nov 17;12(11):e11534. doi: 10.7759/cureus.11534. PMID: 33354478; PMCID: PMC7746318.

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Source: doi.org/10.7759/cureus.11534

Lindford A, Juteau S, Jaks V, Klaas M, Lagus H, Vuola J and Kankuri E (2021) Case Report: Unravelling the Mysterious Lichtenberg Figure Skin Response in a Patient With a High-Voltage Electrical Injury. Front. Med. 8:663807. doi: 10.3389/fmed.2021.663807

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Source: doi.org/10.3389/fmed.2021.663807

Byard RW. Lichtenberg figures—morphological findings. Forensic Sci Med Pathol 19, 269–272 (2023). https://doi.org/10.1007/s12024-023-00612-7

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Source: doi.org/10.1007/s12024-023-00612-7

Byard RW. Lichtenberg figures—morphological findings. Forensic Sci Med Pathol 19, 269–272 (2023). https://doi.org/10.1007/s12024-023-00612-7

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Source: doi.org/10.1007/s12024-023-00612-7

Lines of Zahn

1 image

Tobouti PL, Pigatti FM, Martins-Mussi MC, Machado de Sousa SC. Oral Thrombus: Report of 122 cases with clinically descriptive data. Med Oral Patol Oral Cir Bucal. 2017 May 1;22(3):e366-e370. doi: 10.4317/medoral.21627. PMID: 28390126; PMCID: PMC5432086.

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Source: doi.org/10.4317/medoral.21627

Lisch Nodules

4 images

Adams EG, Stewart KM, Borges OA, Darling T. Multiple, unilateral lisch nodules in the absence of other manifestations of neurofibromatosis type 1. Case Rep Ophthalmol Med. 2011;2011:854784. doi: 10.1155/2011/854784. Epub 2012 Jan 23. PMID: 22606479; PMCID: PMC3350217.

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Source: doi.org/10.1155/2011/854784

Bouirig K, Cherkaoui LO. Nodules de Lisch: marqueur ophtalmologique de la neurofibromatose de type 1. Pan Afr Med J. 2022 Jun 9;42:108. doi: 10.11604/pamj.2022.42.108.35079. PMID: 36034030; PMCID: PMC9392011.

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Source: doi.org/10.11604/pamj.2022.42.108.35079

Antoniolli LP, Milman LM, Bonamigo RR. Dermoscopy of the iris: identification of Lisch nodules and contribution to the diagnosis of Neurofibromatosis type 1. An Bras Dermatol. 2021 Jul-Aug;96(4):487-489. doi: 10.1016/j.abd.2020.09.007. Epub 2021 May 21. PMID: 34030916; PMCID: PMC8245717.

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Source: doi.org/10.1016/j.abd.2020.09.007

Lalchandani JS, Paul A. Left-right asymmetry in a case of bilateral Lisch nodules. Indian J Ophthalmol. 2022 Jul;70(7):2768. doi: 10.4103/ijo.IJO_500_22. PMID: 35791244; PMCID: PMC9426043.

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Source: doi.org/10.4103/ijo.IJO_500_22

Lupus Pernio

4 images

Condé K, Guelngar CO, Mohamed A, Adjibaye E, Cissé FA. Lupus Pernio in Chronic Sarcoidosis. Cureus. 2021 Sep 27;13(9):e18331. doi: 10.7759/cureus.18331. PMID: 34725594; PMCID: PMC8553274.

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Source: doi.org/10.7759/cureus.18331

Sand M, Sand D, Thrandorf C, et al. Cutaneous lesions of the nose. Head Face Med 6, 7 (2010). https://doi.org/10.1186/1746-160X-6-7

License: CC BY 2.0
Modifications: None
Source: doi.org/10.1186/1746-160X-6-7

Moumna R, Douhi Z, Baybay H, Elloudi S, Soughi M, Mernissi FZ. Red Nose, Deeper Cause: Lupus Pernio as A Sentinel Sign of Systemic Sarcoidosis. Sch J Med Case Rep. 2025 May;5:1053-6.

License: CC BY-NC 4.0
Modifications: None
Source: doi.org/10.36347/sjmcr.2025.v13i05.070

Anjaneyan G, Vora R. Lupus pernio without systemic involvement. Indian Dermatol Online J. 2013 Oct;4(4):314-7. doi: 10.4103/2229-5178.120656. PMID: 24350015; PMCID: PMC3853900.

License: CC BY-NC-SA 3.0
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Source: doi.org/10.4103/2229-5178.120656

Maltese Crosses in Red Blood Cells

3 images

CDC Public Health Image Library #20166. Dr. R.G. Scholtens. 1966.

License: Public Domain
Modifications: Letter removed and Cropped
Source: phil.cdc.gov/Details.aspx?pid=20166

Joseph JT, et al. Vertical Transmission of Babesia microti, United States. Emerg Infect Dis. 2012;18(8):1318–1321.

License: Public Domain
Modifications: Cropped
Source: doi.org/10.3201/eid1808.110988

Lobo CA, et al. Babesia: An Emerging Infectious Threat in Transfusion Medicine. PLoS Pathog. 2013;9(7):e1003387.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.1371/journal.ppat.1003387.g001

Molar Tooth Sign

4 images

Wente S, et al. Nosological delineation of congenital ocular motor apraxia type Cogan: an observational study. Orphanet J Rare Dis. 2016;11(1):104.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1186/s13023-016-0486-z

Mahomed N, Prabhu SP. Molar tooth sign—looking beyond the obvious: signs. SA J Radiol. 2013;17(3):102–103.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.4102/sajr.v17i3.275

Brancati F, Dallapiccola B, Valente EM. Joubert Syndrome and related disorders. Orphanet J Rare Dis. 2010;5:20.

License: CC BY 2.0
Modifications: None
Source: doi.org/10.1186/1750-1172-5-20

Byju N, et al. Molar tooth sign with ataxia and see-saw nystagmus (Joubert syndrome). Ann Indian Acad Neurol. 2011;14(1):62–63.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.4103/0972-2327.78057

Moniliform Blepharosis

4 images

Tripathi A, Kumar Gupta S. Lipoid Proteinosis Masquerading as Seborrheic Dermatitis. Cureus. 2021;13(6):e15617.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.7759/cureus.15617

Ng X, MPT J, Ang E. A Rare Ocular Manifestation of Lipoid Proteinosis. Cureus. 2025;17(4):e82423.

License: CC BY 4.0
Modifications: Cropped
Source: pmc.ncbi.nlm.nih.gov/articles/PMC12084890/

Abtahi SM, et al. Urbach-Wiethe Syndrome and the Ophthalmologist: Review of the Literature and Introduction of the First Instance of Bilateral Uveitis. Case Rep Med. 2012;2012:281516.

License: CC BY 3.0
Modifications: None
Source: doi.org/10.1155/2012/281516

Ghazawi FM, et al. A novel nonsense mutation in exon 9 in the extracellular matrix protein 1 gene associated with lipoid proteinosis: A case report. SAGE Open Med Case Rep. 2019;7:2050313X19850359.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.1177/2050313X19850359

Negri Bodies

4 images

CDC Public Health Image Library #3377. Daniel P. Perl. 1971.

License: Public Domain
Modifications: None
Source: wwwn.cdc.gov/phil/Details.aspx?pid=3377

CDC Public Health Image Library #854. Makonnen Fekadu.

License: Public Domain
Modifications: Cropped
Source: wwwn.cdc.gov/phil/Details.aspx?pid=854

CDC Public Health Image Library #26954. Tierkel.

License: Public Domain
Modifications: Cropped
Source: wwwn.cdc.gov/phil/Details.aspx?pid=26954

Henry R, Murphy FA. Etymologia: Negri Bodies. Emerg Infect Dis. 2017;23(9):1461.

License: Public Domain
Modifications: None
Source: doi.org/10.3201/eid2309.ET2309

Non-Caseating Granuloma of Small Intestine

2 images

Kellermann L, Riis LB. A close view on histopathological changes in inflammatory bowel disease, a narrative review. Dig Med Res. 2021;4.

License: CC BY-NC-ND 4.0
Modifications: None
Source: dmr.amegroups.org/article/view/7171/html

Raza A, Chan V, Cheema MA. Atypical Clinical Presentation of Crohn's Disease as Diffuse Abdominal Lymphadenopathy and Venous Thrombosis. Cureus. 2019;11(9):e5805.

License: CC BY 3.0
Modifications: None
Source: doi.org/10.7759/cureus.5805

Ovoid and Popcorn-like Soft Tissue Calcifications

1 image

Hsu V, et al. Use of dual-energy computed tomography for the evaluation of calcinosis in patients with systemic sclerosis. Clin Rheumatol. 2015;34(9):1557–1561.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.3899/jrheum.140773

Palmar Crease Xanthoma

4 images

Maldonado Carrasco CL, et al. Xantoma estriado palmar. Rev Med UCSG. 2025;25(1):31–36.

License: CC BY 4.0
Modifications: None
Source: rmedicina.ucsg.edu.ec/medicina/article/view/1156

Oral A, Bambul N. Xanthoma striatum palmare. Korean J Intern Med. 2016;31(5):1008.

License: CC BY-NC 3.0
Modifications: None
Source: doi.org/10.3904/kjim.2015.277

Yang MY, et al. Xanthoma Striatum Palmare in a Patient of Primary Biliary Cirrhosis with Autoimmune Hepatitis. Ann Dermatol. 2017;29(3):358–359.

License: CC BY-NC 4.0
Modifications: None
Source: doi.org/10.5021/ad.2017.29.3.358

Harris J, et al. Diffuse xanthomas in a patient with primary biliary cholangitis and lipoprotein X. JAAD Case Rep. 2021;7:30–32.

License: CC BY-NC-ND 4.0
Modifications: None
Source: doi.org/10.1016/j.jdcr.2020.10.029

Periodic Acid-Schiff Stain-Positive Macrophages

2 images

Tuggle T, et al. An Incidental Finding of Whipple's Disease Masquerading as Nonspecific, Long-Standing Symptoms. Case Rep Infect Dis. 2024;2024:3177799.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1155/crdi/3177799

Melas N, et al. Whipple's disease: the great masquerader—a high level of suspicion is the key to diagnosis. BMC Gastroenterol. 2021;21:128.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1186/s12876-021-01664-1

Periductal Onion-Skin Fibrosis

4 images

Cazzagon N, et al. Primary Sclerosing Cholangitis: Diagnostic Criteria. Tomography. 2024;10(1):47–65.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.3390/tomography10010005

Prokopič M, Beuers U. Management of primary sclerosing cholangitis and its complications: an algorithmic approach. Hepatol Int. 2021;15:6–20.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1007/s12072-020-10118-x

Seo N, et al. Sclerosing Cholangitis: Clinicopathologic Features, Imaging Spectrum, and Systemic Approach to Differential Diagnosis. Korean J Radiol. 2016;17(1):25–38.

License: CC BY-NC 3.0
Modifications: None
Source: doi.org/10.3348/kjr.2016.17.1.25

Naitoh I, et al. The 2024 diagnostic criteria for primary sclerosing cholangitis. J Gastroenterol. 2025;60:1221–1231.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1007/s00535-025-02265-5

Periungual Fibroma

4 images

Cascarino M, Leclerc-Mercier S. Histological Patterns of Skin Lesions in Tuberous Sclerosis Complex: A Panorama. Dermatopathology. 2021;8(3):236–252.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.3390/dermatopathology8030029

Reddy IS, Somani VK. Giant periungual and subungual fibromas (Koenen's tumor) of tuberous sclerosis complex. Indian J Dermatol Venereol Leprol. 2023;89(2):290–291.

License: CC BY-NC-SA 4.0
Modifications: None
Source: doi.org/10.25259/ijdvl_1194_20

Reddy IS, Somani VK. Giant periungual and subungual fibromas (Koenen's tumor) of tuberous sclerosis complex. Indian J Dermatol Venereol Leprol. 2023;89(2):290–291.

License: CC BY-NC-SA 4.0
Modifications: None
Source: doi.org/10.25259/ijdvl_1194_20

Comninos AN, et al. Frequent falls and confusion: recurrent hypoglycemia in a patient with tuberous sclerosis complex. Clin Case Rep. 2018;6(5):904–909.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1002/ccr3.1483

Pick Bodies

4 images

Ravasia K, Hirsch-Reinshagen V. Selective cellular and regional vulnerability in frontotemporal lobar degeneration: a scoping review. Free Neuropathol. 2025;6:11.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.17879/freeneuropathology-2025-5812

Castellani RJ. The Significance of Tau Aggregates in the Human Brain. Brain Sci. 2020;10(12):972.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.3390/brainsci10120972

Rohn TT, et al. Immunolocalization of an Amino-Terminal Fragment of Apolipoprotein E in the Pick's Disease Brain. PLoS ONE. 2013;8(12):e80180.

License: CC BY 3.0
Modifications: Cropped
Source: doi.org/10.1371/journal.pone.0080180

Kawles A, et al. Phenotypically concordant distribution of pick bodies in aphasic versus behavioral dementias. Acta Neuropathol Commun. 2024;12:31.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.1186/s40478-024-01738-7

Picture Frame Vertebra

1 image

Dell'Atti C, et al. The spine in Paget's disease. Skeletal Radiol. 2007;36:609–626.

License: CC BY-NC 2.0
Modifications: None
Source: doi.org/10.1007/s00256-006-0270-6

Pinch Purpura of Eyelids

4 images

Nguyen HT, Nguyen CTH. Cardiac amyloidosis mimicking acute coronary syndrome: a case report and literature review. Eur Heart J Case Rep. 2020;4(6):1–7.

License: CC BY 4.0
Modifications: None
Source: pmc.ncbi.nlm.nih.gov/articles/PMC7793193/

Miyaue K, Isono H. Periorbital Purpura as a Key Diagnostic Clue in Immunoglobulin Light Chain Amyloidosis. JMA J. 2025;8(2):609–610.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.31662/jmaj.2024-0357

Wang XF, et al. Periorbital purpura can be the only initial symptom of primary light chain amyloidosis: A case report. World J Clin Cases. 2024;12(26):5946–5951.

License: CC BY-NC 4.0
Modifications: None
Source: dx.doi.org/10.12998/wjcc.v12.i26.5946

Kelsey A, et al. Amyloidosis: A story of how inframammary erosions eclipsed inconspicuous periorbital ecchymoses. Int J Womens Dermatol. 2016;2(1):18–22.

License: CC BY-NC-ND 4.0
Modifications: None
Source: doi.org/10.1016/j.ijwd.2015.11.001

Pleural Plaques

4 images

Kolta MF, Khairy MA, El Hinnawy YH. Imaging of asbestos-related lung and pleural diseases as an endemic exposure in Egypt. Egypt J Radiol Nucl Med. 2020;51:50.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1186/s43055-020-00153-x

Delgado D, et al. Placas pleurales por inhalación de fibras de asbesto. Rev Chil Enferm Respir. 2020;36(3):204–210.

License: CC BY 4.0
Modifications: None
Source: www.scielo.cl/scielo.php?pid=S0717-73482020000300204&script=sci_arttext&tlng=pt

Ilsen B, et al. Comparative Interpretation of CT and Standard Radiography of the Pleura. J Belg Soc Radiol. 2016;100(1):106.

License: CC BY 4.0
Modifications: None
Source: pmc.ncbi.nlm.nih.gov/articles/PMC6100645/

Matyga AW, Chelala L, Chung JH. Occupational Lung Diseases: Spectrum of Common Imaging Manifestations. Korean J Radiol. 2023;24(8):795–806.

License: CC BY-NC 4.0
Modifications: None
Source: doi.org/10.3348/kjr.2023.0274

Pneumatosis Intestinalis

3 images

Jto410. Pneumatosis intestinalis CT. Wikipedia "Pneumatosis intestinalis" article. 2014.

License: CC BY-SA 3.0
Modifications: None
Source: en.wikipedia.org/wiki/Pneumatosis_intestinalis#/media/File:Pneumatosis_Intestinalis_CT.JPG

Jto410. Pneumatosis intestinalis radiograph. Wikipedia "Pneumatosis intestinalis" article. 2014.

License: CC BY-SA 3.0
Modifications: None
Source: en.wikipedia.org/wiki/Pneumatosis_intestinalis#/media/File:Pneumatosis_Intestinalis_Radiograph.JPG

Gilani S, et al. Pneumatosis Intestinalis in a Well-Appearing Preterm Infant: An Unusual Presentation of Protein-Induced Proctocolitis. Matern Child Health. 2026;2(1):1–6.

License: CC BY-NC 4.0
Modifications: None
Source: doi.org/10.1159/000549715

Popcorn Calcification in a Lung Nodule

2 images

Baratella E, et al. Calcified Lung Nodules: A Diagnostic Challenge in Clinical Daily Practice. Tomography. 2025;11(3):28.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.3390/tomography11030028

Chiarenza A, et al. Chest imaging using signs, symbols, and naturalistic images: a practical guide for radiologists and non-radiologists. Insights Imaging. 2019;10:114.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1186/s13244-019-0789-4

Porcelain Gallbladder

4 images

Pan X-F, Aizezi B, Jia Z. Porcelain gallbladder secondary to chronic cholelithiasis with filled gallstones: A case report. Medicine. 2025;104(45):e45951.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1097/md.0000000000045951

Kidogawa H, et al. A Case of Porcelain Gallbladder Showing High Levels of CA19-9. Cureus. 2024;16(10):e72583.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.7759/cureus.72583

Kendric TJ, Wijesuriya R. Massive stone or is it glass: a curious case of porcelain gallbladder. J Surg Case Rep. 2023;2023(9):rjad533.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1093/jscr/rjad533

Goel A, et al. Porcelain Gallbladder. Euroasian J Hepato-Gastroenterol. 2017;7(2):181–182.

License: CC BY-NC 4.0
Modifications: None
Source: doi.org/10.5005/jp-journals-10018-1244

Purple Abdominal Striae

4 images

Bokhari M, Cele N. Striae in Cushing's syndrome. J Endocrinol Metab Diabetes S Afr. 2025;30(1):36.

License: CC BY-NC-ND 4.0
Modifications: None
Source: journals.co.za/doi/abs/10.1080/16089677.2025.2683

Asamoah TK, et al. A case of Cushing Syndrome due to accidental intake of dexamethasone. Ghana Med J. 2021;55(2):152–155.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.4314/gmj.v55i2.9

Shah R, et al. Unveiling the Uncommon: A Case Series on Cushing's Disease During Pregnancy. Cureus. 2024;16(8):e66045.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.7759/cureus.66045

Kishimoto I, Matsubara M. Color of Striae in Cushing Syndrome During Pregnancy. JCEM Case Rep. 2025;3(4):luaf036.

License: CC BY-NC-ND 4.0
Modifications: None
Source: doi.org/10.1210/jcemcr/luaf036

Raindrop Skull

4 images

Karnan A, et al. Multiple Myeloma Presenting With Bronchopneumonia: A Case Report. Cureus. 2024;16(3):e56010.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.7759/cureus.56010

Paschou E, Sabanis N. Hypercalcaemia, acute renal failure, anemia, multiple vertebral lytic fractures, and raindrop skull: a quintet, perfect storm. PAMJ Clin Med. 2024;15(27).

License: CC BY 4.0
Modifications: None
Source: www.clinical-medicine.panafrican-med-journal.com//content/article/15/27/full

Alkhaibary A, Alharbi A, Khairy S. Calvarial multiple myeloma: Raindrop skull. Surg Neurol Int. 2024;15:34.

License: CC BY-NC-SA 4.0
Modifications: None
Source: surgicalneurologyint.com/surgicalint-articles/calvarial-multiple-myeloma-raindrop-skull/

Bitelman VM, et al. "Punched out" multiple myeloma lytic lesions in the skull. Autops Case Rep. 2016;6(1):7–9.

License: CC BY-NC 4.0
Modifications: None
Source: dx.doi.org/10.4322/acr.2016.020

Reinke Crystals

2 images

Gretser S, et al. Leydig Cell Tumor in a Patient with 46,XX Disorder of Sex Development (DSD), Ovotesticular: A Case Report and a Review of the Literature. Case Rep Pathol. 2021;2021:5552305.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1155/2021/5552305

Chavez TF, et al. Leydig tumor in normal sized ovaries causing clitoromegaly: A case report. Gynecol Oncol Rep. 2024;52:101345.

License: CC BY-NC 4.0
Modifications: None
Source: doi.org/10.1016/j.gore.2024.101345

Retinal Phakoma

4 images

Afshar P, et al. Retinal astrocytic hamartoma complicated by branch retinal vein occlusion in a patient with tuberous sclerosis complex. Am J Ophthalmol Case Rep. 2023;32:101920.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1016/j.ajoc.2023.101920

Qin X, Tao Y, Zhang Z. Retinal astrocytic hamartoma in tuberous sclerosis complex in an elderly person: a case report. BMC Ophthalmol. 2018;18(1):319.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1186/s12886-018-0991-z

McLean K, Hussain R, Heimann H. Diagnostic imaging of retinal astrocytomas: A case-series. Eye. 2023;37:1019–1025.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1038/s41433-022-02275-0

Dou G, et al. Advantages of optical coherence tomography in assessing retinal astrocytic hamartomas in children with tuberous sclerosis complex. Front Med (Lausanne). 2026;13:1796812.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.3389/fmed.2026.1796812

Ringed Sideroblasts

2 images

Cai J, et al. A novel and apparent de novo ALAS2 missense variant associated with congenital sideroblastic anemia. Front Pediatr. 2024;12:1411676.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.3389/fped.2024.1411676

Rodriguez-Sevilla JJ, Calvo X, Arenillas L. Causes and Pathophysiology of Acquired Sideroblastic Anemia. Genes. 2022;13(9):1562.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.3390/genes13091562

Romaña's Sign

4 images

CDC Public Health Image Library #29450. Dr. Paul L. Rice. 1970.

License: Public Domain
Modifications: None
Source: wwwn.cdc.gov/phil/Details.aspx?pid=29450

WHO/TDR. Romaña's sign in Chagas disease. StatPearls "Chagas disease" article.

License: CC BY-NC-ND 4.0
Modifications: None
Source: www.ncbi.nlm.nih.gov/books/NBK459272/figure/article-19271.image.f2/

CDC Public Health Image Library #2617. Dr. Mae Melvin. 1962.

License: Public Domain
Modifications: None
Source: wwwn.cdc.gov/phil/Details.aspx?pid=2617

Beucler N, Torrico F, Hibbert D. A tribute to Cecilio Romaña: Romaña's sign in Chagas disease. PLoS Negl Trop Dis. 2020;14(11):e0008836.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1371/journal.pntd.0008836

Russell's Sign

3 images

Kyukyusha. Russell's sign photograph. Wikipedia "Russell's sign" article. 2007.

License: Public Domain
Modifications: None
Source: en.wikipedia.org/wiki/Russell%27s_sign#/media/File:Russell's_Sign.png

Young J, Henderson MC, Thompson GR. Anorexia Nervosa: Russell's Sign with Concurrent Tetany. J Gen Intern Med. 2011;26:668.

License: CC BY-NC 2.0
Modifications: None
Source: doi.org/10.1007/s11606-010-1613-5

Rikhari P, Kumar A. Russell's sign in obsessive–compulsive disorder. Indian J Psychiatry. 2021;63:200–201.

License: CC BY-NC-SA 4.0
Modifications: None
Source: doi.org/10.4103/psychiatry.IndianJPsychiatry_957_20

Schiller–Duval Bodies

4 images

Silva LLCD, et al. Yolk sac primary tumor of mediastino: a rare case in a young adult. Einstein (Sao Paulo). 2017;15(4):496–499.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1590/S1679-45082017RC4008

Fischerova D, et al. Yolk Sac Tumor of the Omentum: A Case Report and Literature Review. Diagnostics. 2022;12(2):304.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.3390/diagnostics12020304

Sung HJ, et al. Primary hepatic mixed germ cell tumor in an adult. J Pathol Transl Med. 2021;55(5):355–359.

License: CC BY-NC 4.0
Modifications: None
Source: doi.org/10.4132/jptm.2021.06.16

Harano K, et al. Primary yolk sac tumor of the omentum: a case report and literature review. Case Rep Oncol. 2012;5(3):671–675.

License: CC BY-NC 3.0
Modifications: None
Source: doi.org/10.1159/000337281

Sézary Cells

2 images

Abreu Rocha C, et al. Itchy Skin: A Challenging Differential Diagnosis Between Mycosis Fungoides and Sézary Syndrome. Cureus. 2023;15(10):e46427.

License: CC BY 4.0
Modifications: Cropped
Source: doi.org/10.7759/cureus.46427

El*Falaf. Sézary cell. Wikipedia "Sezary disease" article. 2014.

License: CC BY-SA 3.0
Modifications: None
Source: commons.wikimedia.org/wiki/File:Hem1SezaryCell2.jpg

Silver Stool / Thomas' Sign

1 image

Tang TY, Walsh SR, Clarke JMF. The diagnostic value of silver stool (Thomas' sign). BJS. 2012.

License: CC BY-NC-SA 4.0
Modifications: None
Source: litfl.com/thomas-sign/

Spongiform Tissue in Grey Matter

2 images

CDC Public Health Image Library #10131. Teresa Hammett.

License: Public Domain
Modifications: None
Source: wwwn.cdc.gov/phil/Details.aspx?pid=10131

Urwin P, et al. Sporadic Creutzfeldt-Jakob Disease in 2 Plasma Product Recipients, United Kingdom. Emerg Infect Dis. 2017;23(6):893–897.

License: Public Domain
Modifications: None
Source: doi.org/10.3201/eid2306.161884

Strawberry Gingivitis

4 images

Tamigoes Y, Setiadhi R. Strawberry gingivitis as the first sign of Wegener's granulomatosis: a case report. J Dentomaxillofac Sci. 2019;4(1):49–52.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.15562/jdmfs.v0i0.741

Sung IY, et al. Role of gingival manifestation in diagnosis of granulomatosis with polyangiitis (Wegener's granulomatosis). J Periodontal Implant Sci. 2015;45(6):247–251.

License: CC BY-NC 3.0
Modifications: None
Source: doi.org/10.5051/jpis.2015.45.6.247

Tsukui D, et al. Strawberry Gingivitis: Rare Early Manifestation of Relapsing Granulomatosis with Polyangiitis. Balkan Med J. 2025;42(4):371–372.

License: CC BY-NC-ND 4.0
Modifications: None
Source: doi.org/10.4274/balkanmedj.galenos.2025.2024-12-60

Dhalkari CD, et al. Strawberry gingivitis — First sign of Wegener's granulomatosis. J Oral Maxillofac Pathol. 2020;24(1):172–175.

License: CC BY-NC-SA 4.0
Modifications: None
Source: doi.org/10.4103/jomfp.JOMFP_3_19

String of Pearls Sign

2 images

Buckley B, et al. The clothes maketh the sign. Insights Imaging. 2016;7:629–640.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1007/s13244-016-0507-4

Odion C, et al. Gossypiboma — "string of pearls" sign may be diagnostic: A case report. Ann Med Res Pract. 2023;4:3.

License: CC BY-NC-SA 4.0
Modifications: Cropped
Source: doi.org/10.25259/ANMRP_3_2023

Starry Sky

2 images

Smith D Jr, Reid DM, Mascio AA, Noel BO, Giangreco M. Composite Burkitt Lymphoma and Classical Hodgkin Lymphoma in an Human Immunodeficiency Virus (HIV)-Positive Patient. Cureus. 2024 Jun 21;16(6):e62827. doi: 10.7759/cureus.62827. PMID: 39040737; PMCID: PMC11260658.

License: CC BY 4.0
Modifications: None
Source: www.cureus.com/articles/240609#!/

Chinthagada JE, Gorman PT, Fogle RR, Kutaish N, Diep D. Ileocolic intussusception as the initial presentation of Burkitt lymphoma in a 27-year-old male: a case report. Journal of Surgical Case Reports. 2025 Jun;2025(6):rjaf460.

License: CC BY 4.0
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Source: doi.org/10.1093/jscr/rjaf460

Thumbprinting on AXR

2 images

Cutinha AH, De Nazareth AG, Alla VM, Bewtra A. Clues to colitis: tracking the prints. West J Emerg Med. 2010 Feb;11(1):112-3. PMID: 20411101; PMCID: PMC2850843.

License: CC BY-NC 4.0
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Source: pubmed.ncbi.nlm.nih.gov/20411101/

Lee HH, Sritharan N, Bermingham D, Strey G. Ocrelizumab-induced severe colitis. Case Reports in Gastrointestinal Medicine. 2020;2020(1):8858378.

License: CC BY 4.0
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Source: doi.org/10.1155/2020/8858378

Wickham Striae

5 images

Ślebioda Z, et al. Oral Lichen Planus: Clinical Presentation, Demographic Characteristics, and Risk Factors in a Retrospective Study of 186 Polish Patients. J Clin Med. 2024;13(23):7363.

License: CC BY 4.0
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Source: doi.org/10.3390/jcm13237363

Gurav T, et al. Clinical Characteristics, Identification, and Treatment of Lichen Planus: A Case Report. Cureus. 2024;16(7):e65712.

License: CC BY 4.0
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Source: doi.org/10.7759/cureus.65712

Kowe P, et al. Oral lichen planus: Mucoscopic perspective. J Skin Sex Transm Dis. 2025;7:118–120.

License: CC BY-NC-SA 4.0
Modifications: None
Source: doi.org/10.25259/JSSTD_57_2024

DermNetNZ. Lichen planus — Wickham striae. DermNetNZ Image Library.

License: CC BY-NC-ND 4.0
Modifications: None
Source: dermnetnz.org/imagedetail/10961-lichen-planus

Pastore L, Fiorella ML, Fiorella R, Lo Muzio L. Multiple Masses on the Tongue of a Patient with Generalized Mucocutaneous Lesions. PLoS Med. 2008;5(11):e212.

License: CC BY 4.0
Modifications: None
Source: doi.org/10.1371/journal.pmed.0050212

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