title: [Pilomatrixoma of the auricle. Differential diagnosis with carcinoma pilomatrixoma].
abstract: A 34 year-old man, with a two centimeter diameter quickly growing nodule on the auricular pavillion is presented. After mass excision the histologic diagnosis of pilomatrixoma was made. Pilomatrixoma is a rare benign tumor arising on the hair matrix. The differential diagnosis include pilomatrix carcinoma, a locally and recurrent aggressive tumor capable to make pulmonary metastasis. A review of the literature is included, with emphasis on the clinical and histopathological aspects and the therapeutic attitude.
authors.affiliation: Servicio de Otorrinolaringología, Hospital Prínceps d'Espanya.
authors.forename: J
authors.initials: J
authors.lastname: Nogués Orpí
authors.forename: T
authors.initials: T
authors.lastname: Serrano Piñol
authors.forename: S
authors.initials: S
authors.lastname: Crusat Braña
authors.forename: R
authors.initials: R
authors.lastname: Vera Llaó
authors.forename: M
authors.initials: M
authors.lastname: Maños Pujol
authors.forename: M
authors.initials: M
authors.lastname: Dicenta Sousa
mesh_terms: D000328:Adult; D004428:Ear Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000648:ultrastructure; D004431:Ear, External / Q000473:pathology* / Q000648:ultrastructure; D006801:Humans; D008297:Male; D018296:Pilomatrixoma / Q000175:diagnosis / Q000473:pathology* / Q000648:ultrastructure; D014057:Tomography, X-Ray Computed
vernacular_title: Pilomatrixoma de pabellón auricular. Diagnóstico diferencial con el carcinoma pilomatrixial.