title: An adolescent with a polymorphous rash.
authors.forename: M P
authors.initials: MP
authors.lastname: Gustafson
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D005076:Exanthema / Q000209:etiology*; D006801:Humans; D011695:IgA Vasculitis / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy; D008297:Male; D008487:Medical History Taking; D010808:Physical Examination; D011379:Prognosis