meningioma of optic nerve

例句：

1. 1. The patienthad a history of multiple cerebellar hemorrhages andwas diagnosed with a meningioma.
   患者有多次小脑出血史，被诊断为脑膜瘤。
2. 2. Meningiomas are rare but can cause significantsymptoms if they grow large enough to presson brain tissue.
   脑膜瘤罕见，但如果生长足够大以压迫脑部组织，可能会引起严重症状。
3. 3. Surgery is the primarytreatment for meningiomas, which are slow-growingtumors that often recur after initialremoval.
   手术治疗是主要治疗手段，因为脑膜瘤是缓慢生长的肿瘤，初次切除后往往复发。