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本文报告1例以上颈部肿块为主要症状的颅内脑膜瘤。CT 检查证实巨大颅底肿物由桥小脑角至眶上裂区。全脑血管造影显示巨大多血管性肿物,累及蝶鞍、鞍旁、斜坡和鼻咽后部,向外延伸至颈部,达右乳突区表面。活检证实为脑膜皮型脑膜瘤。脑膜瘤在大体上有两类:球形,通常有完整包膜;扁平型多不具明确包膜,且常侵蚀其下方骨结构。颅外脑膜瘤是少见的,包括颅内脑膜瘤的直接延伸、原发于与颅神经相关或不相关的颅外残存蛛网膜细胞或转移。已报导的颅外脑膜瘤可发生于头
This article reports 1 case of intracranial meningiomas with the most common symptom of neck mass. CT examination confirmed a huge skull base tumor from the cerebellopontine angle to the supraorbital fissure area. Whole brain angiography showed a large multi-vascular tumor, involving the sella, parasella, slopes and nasopharynx posterior, extending outward to the neck, reaching the surface of the right mastoid area. Biopsy confirmed meningioma meningioma. Meningioma in general there are two types: spherical, usually with a complete capsule; flat type with no more clearly enveloped, and often eroded underlying bone structure. Extracranial meningiomas are uncommon and include direct extension of intracranial meningioma, primary remnants of arachnoid cells or metastases that are associated with or unrelated to cranial nerves. Extracranial meningeal tumors have been reported to occur in the head