Case 24  Trigeminal meningioma

 

　　三叉神经脑膜瘤

 

　　A 56-year-old woman presented with a 3-year history of decreased hearing and a 2-month history of unsteady gait and trouble in swallowing. Neurological examination was positive for mildly decreased sensation over the left face, decreased hearing, decreased DC-XI nerve function,and positive cerebellar tests. CT scans showed a 5-cm tumor in the cerebellopontine angle with severe degree of cerebellar-brainstem edema. At surgery, by suboc-cipital cramectomy, a tumor originating from the posterior fossa opening of MeckeFs cave, displacing the nerve VH complex orsally and the cranial nerves DC-XI caudally was completely re-°ved. Nerve V was invaded by tumor and had to be sacrificed. Du to difficulties in waking up from the anesthesia a CT scan was obtained, which showed a cerebellar blood clot in the area of preoperative swelling, compressing the IV ventricle with hydrocephalus. The hematoma was removed, and the patient was discharged 3 months after the operation.