The Perils of Walking Barefoot

Chromoblastomycosis
A man from a rural area who walks barefoot develops nodular, verrucous lesions on his foot. Explore the differential diagnosis for this chronic skin infection.
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A Tiny Tunnel on the Skin

Scabies
Discover the diagnosis behind an intensely itchy rash characterized by a classic linear burrow. Learn about the tiny culprit and its management.
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A Curious Case of Hair Color Change

Chloroquine
Explore a case of a woman who develops sudden hair hypopigmentation. Learn how a commonly prescribed medication, when taken incorrectly, can lead to this rare side effect.
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Mysterious Lines on Fingernails

Chemotherapy
A patient with gastric cancer presents with multiple white lines on their fingernails. Discover the most likely cause of this interesting physical sign.
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A Case of ‘Leopard Skin’

Onchocerciasis
Explore a clinical case featuring spotty skin depigmentation, known as 'leopard skin'. Uncover the diagnosis and management of this parasitic infection.
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A Classic Polymorphic Rash

Varicella
A clinical case challenge featuring a patient with a polymorphic rash of vesicles, pustules, and crusts. Test your diagnostic skills on this common exanthem.
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A Fatal Rash and New-Onset Diabetes

Necrolytic migratory erythema
Explore the case of a patient with new-onset hyperglycemia presenting with distinct purplish skin lesions. Learn about this rare but serious dermatosis.
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The Whiplash Rash

Treatment with bleomycin
A 39-year-old woman develops a painless, nonpruritic, striped rash on her trunk after treatment for a tongue lesion. Discover the underlying cause.
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A Suspicious Streak Under the Nail

Melanoma
Discover the significance of a dark streak under a nail. Learn about Hutchinson's sign and why this clinical finding requires urgent medical evaluation.
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Annular Rash & Anesthetic Skin

Tuberculoid leprosy
Explore a case of a patient with large, annular, hypopigmented macules. Learn how anesthetic skin and key histological findings lead to a specific diagnosis.
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