title: Extensive cholesterol granuloma of the petrous apex presenting with facial paralysis and sensorineural hearing loss: a case report.
abstract: A cholesterol granuloma of the petrous bone is an expanding mass which contains fluids, lipids, chronic inflammatory cells, and cholesterol crystals surrounded by a fibrous lining. The goal of surgery is to provide drainage and ventilation of the affected area to prevent recurrences. In this article, we report a case of a 27-year-old man who was operated using the transmastoid infralabyrinthine approach to drain a cholesterol granuloma cyst.
authors.affiliation: Department of Otolaryngology, Medicine Faculty of Başkent University, Ankara, Turkey. isilaydgn@yahoo.com
authors.forename: Işılay
authors.initials: I
authors.lastname: Oz
authors.forename: Alper Nabi
authors.initials: AN
authors.lastname: Erkan
authors.forename: Haluk
authors.initials: H
authors.lastname: Yavuz
authors.forename: Ismail
authors.initials: I
authors.lastname: Yılmaz
authors.forename: Levent Naci
authors.initials: LN
authors.lastname: Ozlüoğlu
mesh_terms: D000328:Adult; D001299:Audiometry; D001844:Bone Conduction; D002784:Cholesterol; D004322:Drainage; D005158:Facial Paralysis / Q000209:etiology*; D015745:Granuloma, Foreign-Body / Q000150:complications* / Q000473:pathology / Q000601:surgery; D006319:Hearing Loss, Sensorineural / Q000209:etiology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010579:Petrous Bone / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed
chemical_list: D002784:Cholesterol