title: Pathologic quiz case: a 69-year-old man with a brown-black facial papule. Melanocytic matricoma.
authors.affiliation: Department of Pathology, University of South Alabama, Mobile, USA. horenstein@pol.net
authors.forename: Marcelo G
authors.initials: MG
authors.lastname: Horenstein
authors.forename: Andrea G
authors.initials: AG
authors.lastname: Kahn
mesh_terms: D000368:Aged; D003116:Color; D005145:Face / Q000473:pathology*; D006201:Hair Diseases / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008544:Melanocytes / Q000473:pathology*; D018296:Pilomatrixoma / Q000175:diagnosis*; D012878:Skin Neoplasms / Q000175:diagnosis*