A 13-year-old girl presented to the clinic with hair loss and a rash in the axillae for 4 months. The lesions initially had appeared as erythematous and coin-shaped and then had evolved into hyperpigmented...
A 7-year-old boy with a history of eczema presented with painful peeling of his fingernails of several days’ duration. He denied any trauma or other inciting injury to his fingernails. His mother had a...
This article is part of a series describing and differentiating dermatologic lumps and bumps. In part 8, prurigo nodularis and nodular scabies are described.
This article is part of a series describing and differentiating dermatologic lumps and bumps. In part 9, facial angiofibromas, ungual fibromas, and shagreen patch are described.
An 81-year-old man was referred to a dermatology clinic with discoloration of the right thumbnail. The nail discoloration had been present for a month and a half and was not associated with pain.
This article is part of a series describing and differentiating dermatologic lumps and bumps. In part 7, smegma pearl and penile lichen sclerosus are described.
A 6-year-old boy with obesity presented to the clinic with a 7-month history of worsening “bruising” scattered across his entire body. His mother had initially noted a small purplish-brown lesion on his...
A 50-year-old man presented to the dermatology clinic for a routine skin examination. On physical examination, the patient had multiple asymptomatic, pale yellow, slightly raised, linear plaques on his...
