title: What is your diagnosis? Urticaria pigmentosa.
authors.affiliation: Department of Dermatology, University of Puerto Rico, School of Medicine, San Juan 00936.
authors.forename: G
authors.initials: G
authors.lastname: Lugo-Janer
authors.forename: J L
authors.initials: JL
authors.lastname: Sánchez
mesh_terms: D001706:Biopsy; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007223:Infant; D012867:Skin / Q000473:pathology; D014582:Urticaria Pigmentosa / Q000175:diagnosis* / Q000473:pathology