Weinberger J M, Birt B D, Lewis A J, Nedzelski J M
J Otolaryngol. 1985 Oct;14(5):317-22.
Meningiomas not uncommonly spread outside the central nervous system, but primary extracranial meningiomas are much less common, the sites described including the orbit, the calvarium, the neck, the temporal bone and the paranasal sinuses. Reported here is the first instance of extracranial meningioma of the nasopharynx. The histological appearance of meningiomas is diverse, and in ectopic sites can be mistaken for malignant epithelial tumors, as happened here initially. The tumor was excised via a transpalatal flap using an intracapsular debulking approach borrowed from the armamentarium of the intracranial surgeon. Prolonged follow-up with interval CT scans are recommended in patients with apparent ectopic meningioma, in case undemonstrable intracranial disease later becomes manifest.
脑膜瘤扩散至中枢神经系统外并不罕见，但原发性颅外脑膜瘤则要少见得多，其描述的部位包括眼眶、颅骨、颈部、颞骨和鼻窦。本文报道了首例鼻咽部颅外脑膜瘤。脑膜瘤的组织学表现多样，在异位部位可能会被误诊为恶性上皮肿瘤，此处最初就出现了这种情况。该肿瘤通过经腭瓣采用从颅内外科医生的器械库中借鉴的囊内减瘤方法切除。对于明显的异位脑膜瘤患者，建议进行间隔CT扫描的长期随访，以防日后出现无法显示的颅内疾病。
