Diagnosing a Sun Exposed Thumbnail

A 51-year-old white man is seen for evaluation of a dark subungual stripe that appeared in his thumbnail six months ago. There are no symptoms to...


Is This Man's Eczema Spreading?

A 30-year-old man presents with a pruritic rash that first affected both legs and was followed two weeks later by the appearance of a different...


Infant with Unrelenting Rash

A 5-month-old baby is brought for urgent evaluation of a rash that has persisted for more than a month, despite the use of numerous OTC and...


"Athlete's Foot" That Won't Go Away

An 18-year-old man is referred to dermatology for evaluation of bilateral “athlete’s foot” present for months despite the application of...


40 Year Old "Wart" Suddenly Changes

An 87-year-old man presents for evaluation of a lesion on his left fifth finger that has grown and become ulcerated in the past five months. There...