Dermatologic Disorders

A 10-year-old boy presented to our clinic with his parents with a 6-month history of a diffuse rash on his trunk and extremities. The rash had developed abruptly, and individual lesions were characterized...

This article is part of a series describing and differentiating dermatologic lumps and bumps. In part 15, accessory tragus and frostbitten ears are described.

A 20-year-old woman with a Fitzpatrick score of 2 presented via telehealth with “divots” on her forehead and scalp. She reported that 2 months prior to presentation she had received multiple steroid...

A 17-month-old boy was referred to our pediatric dermatology clinic for evaluation of a facial rash that had been present since age 6 months. The patient’s mother reported that the eruption had initially...

This article is part of a series describing and differentiating dermatologic lumps and bumps. In Part 29, Leung and colleagues describe keratoacanthoma. To access previously published articles in the...

A 70-year-old man presented to our dermatology clinic with a 1-week history of 1- to 2-mm papules with an erythematous base on his right wrist. He denied any associated pain, pruritus, or systemic...

A 63-year-old woman presented for evaluation of painless nodules on her feet. With questioning, she was also found to have similar lesions on one of her palms.

This article is part of a series describing and differentiating dermatologic lumps and bumps. In Part 27, Leung and colleagues describe epidermoid cysts.

A 4-year-old girl presented to the dermatology clinic with a 9 mm firm, nontender, well-circumscribed dome-shaped pruritic pink papule on her anterior left thigh. The papule was eccentrically located within...

A previously healthy 7-year-old boy presented to our clinic with his parents with a 2-week history of an enlarging left occipital mass. The lesion was initially red, flat, and circular.