title: Giant bilateral becker nevus: a rare presentation.
abstract: A 14-year-old boy had giant confluent brown patches that were bilaterally distributed on his back, chest, and upper arms, and partially covered by dark coarse hairs. A clinical diagnosis of Becker nevus was made and confirmed histopathologically. We report this patient for the rarity of presentation. Different clinical features of Becker nevi, associated findings, differential diagnoses, and treatment options are discussed.
authors.affiliation: Center for Research and Training in Skin Diseases and Leprosy, Tehran University of Medical Sciences, Tehran, Iran. akhatami@tums.ac.ir
authors.forename: Alireza
authors.initials: A
authors.lastname: Khatami
authors.forename: Mehran Heydari
authors.initials: MH
authors.lastname: Seradj
authors.forename: Farzam
authors.initials: F
authors.lastname: Gorouhi
authors.forename: Alireza
authors.initials: A
authors.lastname: Firooz
authors.forename: Yahya
authors.initials: Y
authors.lastname: Dowlati
mesh_terms: D000293:Adolescent; D001707:Biopsy, Needle; D003937:Diagnosis, Differential; D005500:Follow-Up Studies; D006222:Hamartoma / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D007150:Immunohistochemistry; D007492:Iran; D007911:Lentigo / Q000175:diagnosis / Q000473:pathology*; D008297:Male; D009508:Nevus, Pigmented / Q000175:diagnosis / Q000473:pathology*; D035583:Rare Diseases; D012307:Risk Factors; D012871:Skin Diseases / Q000175:diagnosis / Q000473:pathology*; D012878:Skin Neoplasms / Q000175:diagnosis / Q000473:pathology; D013909:Thorax