title: Bilateral keratin horns arising from the tympanic membranes: a case report.
abstract: A keratin horn is a horn-like projection composed of dense keratotic material. It usually arises in sun-exposed areas of the body. It can be derived from a variety of underlying benign, premalignant, or malignant epidermal lesions. Risk factors associated with malignant change within a keratin horn include a wide base, male sex, and increasing age, in addition to an origin in a sun-exposed area. The mainstay of management is to obtain a biopsy from the base of the horn and subsequent excision if the histopathologic analysis suggests a malignancy. We report an extremely rare case of bilateral keratin horns arising from the tympanic membranes in a 64-year-old woman. To the best of our knowledge, this is the first report of its kind to be published in the English-language literature.
authors: Department of ENT Surgery, Delaunays Rd., Crumpsall, Manchester, Greater Manchester M8 5RB, UK. phyllis1983@hotmail.com.
authors: Chu Qin
authors: CQ
authors: Phua
authors: Vikas
authors: V
authors: Malik
authors: Patrick Zaid
authors: PZ
authors: Sheehan
mesh_terms: D004427:Ear Diseases / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D006801:Humans; D007642:Keratosis / Q000175:diagnosis* / Q000601:surgery; D008875:Middle Aged; D014432:Tympanic Membrane