title: A slowly growing plaque on the lower back:  answer.
authors.affiliation: Department of Dermatology, Hospital del Mar, Universitat Autònoma de Barcelona, Barcelona, Spain. docrozas@yahoo.com
authors.forename: Eduardo
authors.initials: E
authors.lastname: Rozas-Muñoz
authors.forename: Maria E
authors.initials: ME
authors.lastname: Martinez Escala
authors.forename: Wei-Lien
authors.initials: WL
authors.lastname: Wang
authors.forename: Ana Mercedes
authors.initials: AM
authors.lastname: Ciurea
authors.forename: Ramón M
authors.initials: RM
authors.lastname: Pujol
authors.forename: Victor G
authors.initials: VG
authors.lastname: Prieto
mesh_terms: D001415:Back; D015415:Biomarkers / Q000032:analysis; D001706:Biopsy; D049109:Cell Proliferation; D006222:Hamartoma / Q000737:chemistry / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D017496:Hypopigmentation / Q000175:diagnosis* / Q000378:metabolism / Q000473:pathology; D007150:Immunohistochemistry; D011237:Predictive Value of Tests; D012867:Skin / Q000473:pathology*; D012871:Skin Diseases / Q000175:diagnosis* / Q000378:metabolism / Q000473:pathology; D012880:Skin Pigmentation
chemical_list: D015415:Biomarkers