Results The trigeminal neurinoma could be classified into three types: posterior cranial fossa type (8 cases), middle cranial fossa type (4 cases), and straddle type (24 cases).

• 结果颅内三叉神经鞘瘤分三型：颅后窝型（8例）、颅中窝型（4例）及骑跨型（24例）。