title: Primary cholesteatoma of petrous bone presenting as cervical fistula.
abstract: A unique case of primary cholesteatoma of the petrous bone is described. The patient presented with a cutaneous fistula of the anterior cervical triangle and was initially diagnosed and treated as sebaceous cyst or imflammatory lympha node for 3 months. Later examination showed white mass in the right external auditory canal and a severe conductive hearing loss. Radiological findings revealed a massive soft tissue consistent with cholesteatoma in the right petrous bone. The lesion was successfully managed with an endoscopy-assisted technique leaving the neurovascular structures in situ without operative complications. A review of the literature shows that only a few cases of cervical abscess associated with mastoid cholesteatoma have been reported. We also discussed the diagnosis, clinical features and surgical strategy for petrous bone cholesteatoma.
authors.affiliation: Department of Otorhinolaryngology, Xijing Hospital, The Fourth Military Medical University, Xi'an 710032, People's Republic of China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Lin
authors.forename: Yang
authors.initials: Y
authors.lastname: Chen
authors.forename: Lian-Jun
authors.initials: LJ
authors.lastname: Lu
authors.forename: Li
authors.initials: L
authors.lastname: Qiao
authors.forename: Jian-Hua
authors.initials: JH
authors.lastname: Qiu
mesh_terms: D000293:Adolescent; D001847:Bone Diseases / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D002781:Cholesteatoma / Q000150:complications* / Q000175:diagnosis / Q000601:surgery; D017577:Cutaneous Fistula / Q000209:etiology*; D005260:Female; D006314:Hearing Loss, Conductive / Q000209:etiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D009333:Neck; D038781:Otoscopy; D010579:Petrous Bone / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed