neurilemmoma of mediastinum

例句：

1. 1. The patient was diagnosed with a neurilemmoma, which is a rare type of brain tumor.
   患者被诊断出患有一种罕见的脑肿瘤，即神经瘤。
2. 2. The neurilemmoma was located in the lower part of the brain and caused severe pain and nausea.
   这个神经瘤位于大脑下部，导致剧烈疼痛和恶心。
3. 3.The treatment for neurilemmoma often involves surgery to remove the tumor, followed by radiation therapy to prevent recurrence.
   治疗神经瘤通常包括手术切除肿瘤，然后进行放疗以防止复发。