title: Intracranial extra-axial ependymoma involving the petroclival region: a rare case report.
abstract: Intracranial extraaxial ependymomas (IEAEs) are very rare, and extra-axial petroclival ependymoma (EAPE) has not been reported in the reviewed English-language literature by now. We present a male patient with EAPE misdiagnosed as a petroclival meningioma preoperatively, and involved recurrence at 4th months after operation though totally resection. Thereafter, we report this case and discuss the clinical characteristics of the disease by briefly review.
authors: Department of Neurosurgery, West China Hospital of Sichuan University 37, Guoxue Alley, Chengdu 610041, Sichuan Province, P.R. China.
authors: Xiang
authors: X
authors: Yang
authors: Department of Neurosurgery, West China Hospital of Sichuan University 37, Guoxue Alley, Chengdu 610041, Sichuan Province, P.R. China.
authors: Yanming
authors: Y
authors: Ren
authors: Department of Pathology, West China Hospital of Sichuan University 37, Guoxue Alley, Chengdu 610041, Sichuan Province, P.R. China.
authors: Weilu
authors: W
authors: Wu
authors: Department of Neurosurgery, West China Hospital of Sichuan University 37, Guoxue Alley, Chengdu 610041, Sichuan Province, P.R. China.
authors: Xiang
authors: X
authors: Wang
authors: Department of Neurosurgery, West China Hospital of Sichuan University 37, Guoxue Alley, Chengdu 610041, Sichuan Province, P.R. China.
authors: Xuesong
authors: X
authors: Liu
authors: Department of Neurosurgery, West China Hospital of Sichuan University 37, Guoxue Alley, Chengdu 610041, Sichuan Province, P.R. China.
authors: Yuekang
authors: Y
authors: Zhang
mesh_terms: D000328:Adult; D014408:Biomarkers, Tumor / Q000032:analysis; D001706:Biopsy; D001932:Brain Neoplasms / Q000737:chemistry / Q000473:pathology* / Q000601:surgery; D003399:Craniotomy; D003951:Diagnostic Errors; D004806:Ependymoma / Q000737:chemistry / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D008279:Magnetic Resonance Imaging; D008297:Male; D008579:Meningioma / Q000473:pathology*; D009364:Neoplasm Recurrence, Local; D011237:Predictive Value of Tests; D012086:Reoperation; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D014408:Biomarkers, Tumor
keywords: Ependymomas; extraaxial; intracranial; petroclival region