What has caused this man in his 20s with obesity to develop raised reddish-yellow bumps on his back, shoulders, and the extensor surfaces of his arms and legs? That's the question facing Jun Li, MD, ...

The patient is an 83-year-old female with a 30-year history of intense pruritus which started on her legs and over the last year has spread to other scattered areas on the body. She has Type I skin ...

A 38-year-old, mildly obese Caucasian man reported the sudden onset of erythematous, papular lesions. The papules had presented four weeks earlier in crops on the extensor surfaces of his arms and ...