Derm Dx: Hypopigmented macules on a woman's back

By Kristy Fleming, MD

An otherwise healthy 33-year-old woman presented for a routine annual full-body skin exam. She was concerned about a white area on her mid-upper back.

Given the location of the lesion, the patient was not able to see it very well. She was unsure how long the lesion had been present or if it had changed in size, ...