TY - JOUR
AR - SCR-2020-4-113
TI - Cystic Meningioma in the Cerebellopontine Angle Mimicking Vestibular Schwannoma: A Case Report
AU - Yong , Deng
AU - Zhigang , Lan
AU - Chenghong , Wang
AU - Yuekang, Zhang
JO - Surgical Case Reports
PY - 2020
DA - Thu 30, Apr 2020
SN - 2613-5965
DO - http://dx.doi.org/10.31487/j.SCR.2020.04.13
UR - https://www.sciencerepository.org/cystic-meningioma-in-the-cerebellopontine-angle-mimicking-vestibular-schwannoma_SCR-2020-4-113 
KW - Cystic meningioma, cerebellopontine angle, vestibular schwannoma
AB - 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.