Pathological dia-gnosis showed: 10 osteomas, 7 meningio-mas, 4 metastatic tumours, 3 neurinomas,2 optic nerve gliomas, 2 cavernous he-mangiomas, 2 mucoceles, 2 epidermoidand dermoid cyst and 1 chondrosarcoma.

• 病理诊断:骨瘤10例,脑膜瘤7例,转移癌4例,神经鞘瘤3例,视神经胶质瘤2例,粘液囊肿2例,上皮样及皮样囊肿2例,海绵状血管瘤2例和软骨肉瘤1例。