三叉神经节的神经纤维瘤占颅内神经纤维瘤的2.5%,但尸检材料则占7.5%,这是因为三叉神经节瘤同三叉神经痛或颅底肿瘤之间的鉴别诊断有一定困难,容易漏诊.三叉神经节位于颞部岩骨尖部的前方硬脑膜的两层之间,其内侧毗连海绵窦外壁和颈内动脉虹吸部的床突下段.从三叉神经节或三 The neurofibroma of the trigeminal ganglion accounts for 2.5% of intracranial neurofibromas, but the autopsy material accounts for 7.5%. This is because the differential diagnosis between trigeminal ganglion tumor and trigeminal neuralgia or skull base tumor is difficult and easy. Missed diagnosis. The trigeminal ganglion is located between the two layers of the anterior dura mater of the humeral petrous cusp. Its medial side connects the outer wall of the cavernous sinus and the lower part of the iliac crest of the internal carotid artery. From the trigeminal ganglion or three