Abstract
Cystic meningioma in the cerebellopontine angle (CPA) is an extremely uncommon disease. It is often misdiagnosed as other diseases. Its clinical features, surgical strategies and prognosis are not clearly understood. We reported a case of cystic meningioma in the CPA with tumor invasion into the internal auditory canal (IAC). Based on the typical preoperative symptoms, signs, hearing tests, and enhanced magnetic resonance imaging (MRI), the 36-year-old female patient was diagnosed with vestibular schwannoma and underwent surgical resection. Postoperative pathology revealed that the tumor was meningioma. It was totally removed without any new neurological dysfunction, and no recurrence was observed in the follow-up within 24 months. Cystic meningioma in the CPA is considered to have a high pathological grade and recurrence rate. Considering this situation, total intraoperative resection, including the enhanced wall of the tumor and postoperative follow-up may be critical.
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