Derm Dx: Brown, Irregular, Nonblanching Plaques

A 42-year-old man presents to a local dermatology clinic with a rash on his right thigh. He first noticed the rash approximately 4 months earlier. The rash originally had a red color but was completely asymptomatic. The patient reports being otherwise healthy. He denies taking any medications. He has never had a similar rash in the past. On examination, multiple ...