Dermatologic Disorders

This article is part of a series describing and differentiating dermatologic lumps and bumps. In Part 37, Leung and colleagues describe keratosis pilaris. To access previously published articles in the...

Steatocystoma multiplex is a rare skin condition clinically characterized by multiple, asymptomatic, smooth, round, soft to firm, often freely movable, yellow or skin-colored papules and nodules.

A 3-month-old boy presented to the dermatology clinic with large erythematous plaques that appeared in the first few weeks of life, localized to the face, back, and torso.

A 53-year-old woman presented for a dermatology consult for a spreading ulcer on the lateral left calf. The patient thought the lesion was an insect bite and had applied an antibiotic ointment and a...

This article is part of a series describing and differentiating dermatologic lumps and bumps. In Part 38, Leung and colleagues describe lichen striatus. To access previously published articles in the...

Diffuse cutaneous mastocytosis, a rare but potentially fatal form of cutaneous mastocytosis, accounts for approximately 1% to 5% of pediatric cutaneous mastocytosis cases

This article is part of a series describing and differentiating dermatologic lumps and bumps. In Part 41, Leung and colleagues describe congenital melanocytic nevi. To access previously published articles...

A 37-year-old woman presented to her primary care physician with erythematous and pruritic patchy lesions on her scalp that had been present for a year, which the patient initially presumed to be associated...

A 62-year-old healthy man presented to his primary care provider with a 2-day history of painful vesicular rashes on his right trunk.

A 60-year-old man presents to his internist requesting a discussion on treatment options for his facial vitiligo.