JAMA Dermatology

Progressive Hair Loss With Short Hair in a Child

A school-aged girl presented to the dermatology clinic with a 6-year history of hair loss and short hair, and light microscopy of scalp hair shafts revealed no structural abnormalities, such as cuticular damage, twisting, bending, or miniaturization. What is your…

Ecchymotic Plaques on the Scalp of a Man in His 80s

A man in his 80s had a 4-week history of progressive weakness and fatigue, with associated development of purple bruiselike lesions on his head. What is your diagnosis?

A Rapidly Enlarging Facial Abscess

A woman in her late 70s with a history of immunoglobulin A monoclonal gammopathy of unknown significance presents with a tender, draining lesion of the central face. What is your diagnosis?