A 39-year-old man is referred for evaluation of a mass on the back of his neck. Can you make the correct diagnosis?
A 75-year-old woman presents with extremely itchy red plaques on her trunk and extremities, which she reports were present for months. Initially the eruption started on her shins, but subsequently generalized. Her face and genitals are spared, and she denies any blisters or erosions in her mouth. Symptom review is otherwise negative. The patient has…