小脑幕脑膜瘤属颅底和脑深部肿瘤,常与重要的神经组织、颅神经、脑干和血管关系密切,且常侵犯静脉窦,因而长期以来一直是对神经外科医生的一个挑战。文献报道多见于省级大医院神经外科中心,地市级医院报道较少。近10年来,随着影像技术如高分辨率CT、MRI、数字减影脑血管造影的 Cerebellar meningiomas, which are tumors of the skull base and deep brain, often have a close relationship with important nerve tissue, cranial nerves, brainstems, and blood vessels, often invading the sinuses, and have long been a challenge to neurosurgeons. Literature reports more common in the provincial department of neurosurgery center, municipal hospitals reported less. In the past 10 years, with the imaging techniques such as high resolution CT, MRI, digital subtraction angiography