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脑膜瘤常来源于蛛网膜的内皮细胞，为典型的脑外生长性肿瘤。当脑膜瘤长大后侵及口腔颌面部，而表现在颌面部的症状比较少见，易引起误诊。因此，我们总结临床上所见的５例颌面部为首发症状脑膜瘤的诊治情况，发现脑膜瘤除了生长缓慢，呈膨胀性生长等良性肿瘤特征外，还能从ＣＴ片中了解肿瘤的范围、边界情况，内部的钙化灶及肿瘤与颅内的关系，而为进一步的手术治疗提供依据。我们认为ＣＴ是目前诊断脑膜瘤最有效方法之一。治疗以手术为主，对向颅内生长的脑膜瘤采用功能性进颅术，以减少术后颅内并发症的发生，避免术后的肿瘤复发
Meningiomas often come from arachnoid endothelial cells, is a typical growth of brain tumors. When meningiomas grow up and invade the oral and maxillofacial region, while the performance of the maxillofacial region is relatively rare, easily lead to misdiagnosis. Therefore, we summarize the clinical findings of 5 cases of maxillofacial meningioma diagnosis and treatment of the first symptom, found that in addition to meningioma growth slow growth was characterized by benign tumor growth, but also from the CT slice to understand the scope of the tumor , Border conditions, internal calcification and tumor and intracranial relationship, and provide the basis for further surgical treatment. We think CT is one of the most effective methods to diagnose meningioma. The treatment of surgery-based, intracranial meningioma using functional craniotomy, to reduce the incidence of postoperative intracranial complications, to avoid postoperative tumor recurrence