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目的探讨眶内脑膜瘤的CT表现,提高其CT诊断水平。方法回顾性分析1997-10—2006-10在我院经手术及病理检查确诊的眶内脑膜瘤(原发或继发)17例CT表现和临床资料。结果视神经鞘脑膜瘤11例,眶骨膜脑膜瘤4例,蝶骨嵴脑膜瘤2例。增强扫描,病变大多数呈均匀性强化。“车轨征”、“套袖征”及眶骨增生性改变是眶内脑膜瘤较为特征性的征象。结论CT检查对眶内脑膜瘤的诊断具有重要价值。
Objective To investigate the CT appearance of intraorbital meningiomas and improve their CT diagnosis. Methods The CT findings and clinical data of 17 cases of intramedullary meningioma (primary or secondary) confirmed by surgery and pathological examination in our hospital from 1997-10 to 2006-10 were retrospectively analyzed. Results There were 11 cases of optic nerve sheath meningiomas, 4 cases of iliac periosteal meningiomas, and 2 cases of sphenoid ridge meningioma. For enhanced scans, most of the lesions were evenly enhanced. “Car track sign”, “sleeve sleeve sign” and metatarsal proliferative changes are the more characteristic features of orbital meningiomas. Conclusion CT examination has important value in the diagnosis of orbital meningiomas.