title: Lichen planus of the nail presenting as a tumor: diagnosis by longitudinal nail bed biopsy.
abstract: Our patient presented with a keratotic tumor of the nail bed that simulated a neoplasm. Longitudinal nail bed biopsy showed lichen planus, sparing the patient excisional surgery. We review the differential diagnosis of nail bed tumors, nail biopsy techniques, and the findings of lichen planus of the nail.
authors.affiliation: Ohio State University College of Medicine, Columbus.
authors.forename: D R
authors.initials: DR
authors.lastname: Lambert
authors.forename: R J
authors.initials: RJ
authors.lastname: Siegle
authors.forename: C
authors.initials: C
authors.lastname: Camisa
mesh_terms: D000368:Aged; D001706:Biopsy; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008010:Lichen Planus / Q000473:pathology*; D009260:Nail Diseases / Q000473:pathology*; D009262:Nails / Q000473:pathology; D009369:Neoplasms / Q000473:pathology