文档介绍：“毛刺征”与“脑膜尾征”在MRI鉴别靠近脑表面的恶性淋巴瘤与脑膜瘤的价值
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【摘要】目的评价“毛刺征”与“脑膜尾征”在MRI鉴别靠近脑表面的恶性淋巴瘤与脑膜瘤的价值。方法分析经手术或穿刺病理证实的8例9个靠近脑表面的恶性淋巴瘤及35例35个随机抽取的靠近脑表面的脑膜瘤,统计增强MRI病灶边缘有“毛刺征”与“脑膜尾征”的病灶数,作统计学分析。结果淋巴瘤组与脑膜瘤组患者脑膜尾征检出率未发现组间差异(校正x2=;P=)。%(校正x2=; P=)。%%(均P=);但脑膜尾征的灵敏度或特异度均未发现组间差异。结论“毛刺征”对两者的鉴别诊断具有较高价值,“脑膜尾征”并非是脑膜瘤特有的征象。
【关键词】毛刺征脑膜尾征原发恶性淋巴瘤脑膜瘤脑
[Abstract] Objective To investigate the value of spiculation and dural tail sign on MRI in the differential diagnosis of primary malignant lymphomas and meningioma near brain surface. Methods A retrospective analysis of MR examinations was performed in 9 lesions of 8 patients with primary malignant lymphomas near brain surface and 35 lesions of 35 patients with meningiomas. All lesions were proved by surgery and pathology. Spiculation and dural tail signs on MRI were detected for statistical analysis. Results There was no significant difference for dural tail sign between two groups(correctionx2=;P=). Sign of spiculation was seen much more 65% in lymphoma group than that in meningioma group. Statistical analysis showed significant difference (correction x2 test, x2=; P=). The sensitivity and specificity of spiculation sign in lymphoma group were much more % and % than those in meningioma group respective