title: Photo quiz: urticaria pigmentosa.
authors.affiliation: Department of Dermatology, Buffalo Medical Group, Williamsville, NY 14221, USA.
authors.forename: T N
authors.initials: TN
authors.lastname: Helm
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D014582:Urticaria Pigmentosa / Q000175:diagnosis* / Q000628:therapy