Meningiomas Involving the Internal Auditory Canal: A Diagnostic and Surgical Challenge
نویسندگان
چکیده
منابع مشابه
A Challenge for Cochlear Implantation: Duplicated Internal Auditory Canal.
Duplication of the internal auditory canal is an uncommon, congenital malformation that can be associated with sensorineural hearing loss owing to aplasia/hypoplasia of the vestibulocochlear nerve. Only 14 such cases have been reported to date. We report the case of a 13-month-old girl with bilateral, congenital, sensorineural hearing loss caused by narrow, duplicated internal auditory canals a...
متن کاملMeningiomas of the Cerebellopontine Angle: Radiological Differences in Tumors with Internal Auditory Canal Involvement and Their Influence on Surgical Outcome
This study explored the clinical, radiological, and pathological characteristics of cerebellopontine angle (CPA) meningiomas with internal auditory canal (IAC) involvement. The pre- and postoperative MR images of 193 consecutive patients with pathologically diagnosed meningioma centered around the IAC were analyzed, focusing on changes in the IAC, maximal axial tumor volume, peritumoral brain e...
متن کاملNeurootological Findings in Meningiomas of the Internal Auditory Canal and Cerebellopontine Angle.
M eningiomas arise from arachnoid villi, the apparatus responsible for cerebrospinal fluid absorption, in proximity to a major vein or dural sinus and might also be present along neural fo-ramina at the base of the skull. In the cerebellopontine angle (CPA), 80-90% of tumors are acoustic neurino-mas and only 10-15 % are meningiomas, which usually originate from the meningeal lining of the petro...
متن کاملPatulous internal auditory canal.
OBJECTIVE To investigate a rare anomaly of the internal auditory canal known as a patulous canal and its relationship to hearing impairment. METHODS High-resolution computed tomographic scans of the temporal bones of patients who presented between August 2001 and August 2002 were reviewed. The patients' medical charts were evaluated for age, sex, and hearing impairment, and the computed tomog...
متن کاملIntracranial aspergillosis involving the internal auditory canal and inner ear in an immunocompetent patient.
We report the MR imaging findings in a case of intracranial aspergillosis involving the internal auditory canal (IAC) and inner ear in an immunocompetent patient. The presence of rim enhancement of the vestibulocochlear nerve, abnormal signal intensity involving the labyrinth, and adjacent meningeal enhancement might help clinicians to make a correct diagnosis in patients with a mass in the IAC...
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ژورنال
عنوان ژورنال: Skull Base
سال: 1999
ISSN: 1531-5010,1532-0065
DOI: 10.1055/s-2008-1058154