【摘要】 目的探讨颞骨扁平肥厚性脑膜瘤的CT和MRI影像学特征。方法回顾分析4例颞骨扁平肥厚性脑膜瘤的CT和MRI表现。结果颞骨扁平肥厚性脑膜瘤CT的典型影像学征象:颞骨广泛弥漫性骨质增生硬化,边缘呈毛刷样改变。MRI特征表现为与颞骨对应区的脑膜弥漫性增厚并形成软组织肿块影,增强后可见明显强化。本组4例均伴中耳乳突、外耳道的炎性改变,可继发胆脂瘤。结论 CT可直观显示颞骨广泛的骨质改变,MRI可清楚显示软组织肿块并准确判断病变范围,两者结合在本病的诊断和治疗中起重要作用。更多还原

【Abstract】 Objective To report CT and MRI appearances of temporal bone meningioma en plaque. Methods CT and MRI findings in 4 patients with temporal bone meningioma en plaque were retrospectively reviewed. Results In all cases, CT typically showed hyperostosis of the temporal bone and hairy margins of the affected area. On MRI, the dura-based soft mass showed moderate to marked enhancement. Associated inflamation and cholesteatoma were seen in the middle ear or mastoid. Conclusions CT can clearly demonstrate the hyperostotic changes, which has an important value in making the diagnosis of meningioma en plaque. MRI can reveal soft tissue masses and involvement of adjacent structures. Combination of CT and MRI is of great value in the diagnosis and treatment of temporal bone meningioma en plaque.更多还原