Five cases were excised via paranasal-improved pterional approach, two via extended subfrontal extradural approach, one via subfrontal approach.All patients were operated through microscope.

• 5例行鼻旁-改良翼点人路，2例行扩大额下硬脑膜外人路，1例行额下人路，均于显微镜下行肿瘤切除。