窦镰旁脑膜瘤肿块与窦镰间关系的CT探讨

CT Analysis on Correlation of Parasagittal Sinus and Parafalx Meningiomas with Sagittal Sinus and Falx

对５９例经手术和病理证实的窦镰旁脑膜瘤，对ＣＴ征象进行分析，发现有以下几种表现：肿块跨越征；肿块平直征；肿块扭曲征；窦镰增粗、密度增高征等。结合手术所见，探讨了它们的病理实质及其临床意义。

The computed tomographic character-istics of 59 cases of parasagittal sinus and parafalxmeningiomas which were verifled in operation andpathology are analysed.They were found as follows:(1)the striding sign of the tumor for the superiorsagittal sinus and/or falx; (2)the smooth sign of theinterior edge of the tumor;(3)the turning sign of thefalx for one side of the tumor;and(4)the thicknessand density increasing sign of the falx and/or sagittal. Based on the operation findings,the pathologic basesand clinical values are also discussed.