颅内浆细胞肉芽肿的CT、MRI表现  

CT and MRI Findings of Intracranial Plasma-Cell Granuloma(A Report of 3 Cases)

作　　者：解中福[1] 刘梅莉[1] 秦进喜[1] 张蕾莉[1] 杜金梁[1] 崔世民[1] 

机构地区：[1]天津市脑系科中心医院放射科病理科,天津300060

出　　处：《实用放射学杂志》2001年第3期180-181,共2页Journal of Practical Radiology

摘　　要：目的 :探讨颅内浆细胞肉芽肿的CT、MRI特征。方法 :对经手术、病理证实的 3例颅内浆细胞肉芽肿的临床资料进行了回顾性分析 ,并复习了近几年国外文献。结果 :2例CT显示单发圆形或类圆形分叶状低、等密度肿块 ,伴有灶周水肿、占位效应和硬膜尾征 ,呈均一强化。MRI显示T1WI为低、等信号 ,T2 WI为高信号 ,增强后信号均匀。 1例密度不均 ,肿块内可见低密度灶。MRI示T1WI呈低信号 ,T2 WI不均匀信号。结论 :颅内浆细胞肉芽肿缺少特征性CT、MRI表现 ,须依靠病理和免疫组化染色确诊。MRA和DSA有助于与脑膜瘤和浆细胞瘤鉴别。Objective:To study the CT and MRI features of lntracranial plasma-cell granuloma.Methods:CT and MRI images of 3 cases with incranial plasma cell granuloma proved by pathology were studied with review of the literature.Results:CT sacn showed a round lobular hypodense or isodense mass surrounded by marked perifocal edema.There may be mass effect,dural tail shape and homogenous contrast enhancement.On MRI,the mass had hypointensity on T 1WI with slightly increased signal on T 2WI.It was hetergenously enhanced with gadolinium-DTPA. Conclusion:There are no chacterstic CT and MRI manifestations;the diagnosis should depend on microscopic examination and immunohistochemical staining.MRA and DSA are helpful to differentiate from meningioma and plasmacytoma. [

关 键 词：颅内浆细胞肉芽肿 CT MRI 鉴别诊断 

分 类 号：R739.41[医药卫生—肿瘤] R730.44[医药卫生—临床医学]