title: Becker's nevus and malignant melanoma.
abstract: We describe 9 patients who presented Becker's nevus (BN) together with a malignant melanoma (MM). Eight patients were male. In 5 patients the MM was on the same body site as the BN. The melanoma was of the superficial-spreading type in 7 cases and in 1 patient was within the BN. Twice a dysplastic-nevus syndrome was diagnosed and in 2 patients a familial melanoma. To the best of our knowledge this is the first report of the co-occurrence of BN and MM.
authors.affiliation: Department of Dermatology, University Hospital Zurich, Switzerland.
authors.forename: B
authors.initials: B
authors.lastname: Fehr
authors.forename: R G
authors.initials: RG
authors.lastname: Panizzon
authors.forename: U W
authors.initials: UW
authors.lastname: Schnyder
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008545:Melanoma / Q000473:pathology*; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D009508:Nevus, Pigmented / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology*