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...
A 73-year-old woman presented with a rash on her upper back. She had a history of essential hypertension, hypothyroidism, and breast cancer, the latter of which had been treated with surgery, chemotherapy,...
