title: A 16-year-old boy with a trunk lesion.
authors.affiliation: Division of Dermatology, Children's Memorial Hospital, Feinberg School of Medicine, Chicago, IL, USA.
authors.forename: Sarah L
authors.initials: SL
authors.lastname: Chamlin
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D006801:Humans; D017495:Hyperpigmentation / Q000150:complications / Q000175:diagnosis*; D006983:Hypertrichosis / Q000150:complications / Q000175:diagnosis*; D007087:Illinois; D008297:Male; D009508:Nevus, Pigmented / Q000150:complications / Q000175:diagnosis*