title: Symmetrical retroauricular papules. Basal cell carcinoma.
authors.affiliation: University of Michigan Medical School, Ann Arbor.
authors.forename: L S
authors.initials: LS
authors.lastname: Chan
mesh_terms: D000368:Aged; D002280:Basal Cell Carcinoma / Q000473:pathology*; D004428:Ear Neoplasms / Q000473:pathology*; D006801:Humans; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology*