title: Aggressive pilomatrixoma of the infra-auricular area: a case report.
abstract: Although pilomatrixomas are well known among dermatologists and dermatopathologists, head and neck surgeons confronted with these lesions in the infra-auricular region do not consider this benign neoplasm in the differential diagnosis. Aggressive pilomatrixoma is a benign tumor of the hair matrix cells affecting mainly children. Histologically, the border between aggressive pilomatrixoma and pilomatrix carcinoma is still not clear. We report the case of a 15-year-old Turkish boy suffering from an aggressive pilomatrixoma of the infra-auricular region and review the literature about this unclear entity.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, CHU Saint-Pierre, Université Libre de Bruxelles, Brussels, Belgium. sven.saussez@umh.ac.be
authors.forename: Sven
authors.initials: S
authors.lastname: Saussez
authors.forename: Virginie
authors.initials: V
authors.lastname: Mahillon
authors.forename: Catherine
authors.initials: C
authors.lastname: Blaivie
authors.forename: Annick
authors.initials: A
authors.lastname: Haller
authors.forename: Gilbert
authors.initials: G
authors.lastname: Chantrain
authors.forename: Marie-Paule
authors.initials: MP
authors.lastname: Thill
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D004428:Ear Neoplasms / Q000473:pathology* / Q000601:surgery; D006201:Hair Diseases / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D009367:Neoplasm Staging; D018296:Pilomatrixoma / Q000473:pathology* / Q000601:surgery; D012878:Skin Neoplasms / Q000473:pathology* / Q000601:surgery