摘要
目的：总结颅脑孤立性浆细胞瘤的ＭＲ表现，提高对该病的认识。方法：搜集了４例经我院病理证实的颅脑孤立性浆细胞瘤，全部病人均在我院行ＭＲ检查。ＭＲ扫描重点观察了肿瘤的发生部位，信号特点，侵润范围，骨质破坏情况，和增强扫描特征。根据病人病历资料，我们对病人的ＣＴ和Ｘ线平片表现也进行了总结，并与ＭＲ表现进行了对照。结果：４例颅脑孤立性浆细胞瘤中，两例肿瘤发生于额式顶骨，并造成相应的骨质破坏。另两例肿瘤与颅骨无任何联系，一例位于左额镰旁，一例位于右三角区。肿瘤多表现为均匀的等或稍低Ｔ１信号，等或稍高Ｔ２信号，注药后均匀强化。肿瘤边界清楚，无骨硬化及增生。本组３例行尿本周蛋白检查病人，全部表现阴性。结论：颅脑浆细胞瘤的ＭＲ表现与肿瘤起源部位和侵润范围有着密切关系。肿瘤的ＭＲ表现与某些常见中枢神经系统肿瘤十分相似，不易鉴别。ＭＲ能够清楚地显示肿瘤及其与周围组织的关系，是显示浆细胞瘤及其侵润范围的最佳影像学检查方法。
Purpose:To define MR appearances of solitary craniocerebral plasmacytomas.Methods: Four patients with solitary craniocerebral plasmacytomas were examined with 1.5T MR imaging system.The morphologic appearances and signal intensities of the lesions were analyzed with emphasis on tumor location,extent,bone invasion,and characteristics in contrast enhanced studies.Results:Four solitary craniocerebral plasmacytomas were found.Two cases were found in parietal or frontal bone.Another 2 cases were intracranial extramedullary plasmacytomas.The tumor usually show clear borders with relatively homogeneous iso hypointensity on T 1WI and iso hyperintensity on T 2WI.All tumor show enhancement after contrast injection.Bone invasion is common except for extramedullary cases.Laboratory studies in 3 patients show negative Bence Jones protein in urine.Conclusion:Solitary craniocerebral plasmacytoma is difficult to differentiate from other common tumors.However,MR is the best imaging tool in display the tumor and its relation with surrounding structures.
出处
《中国医学影像技术》
CSCD
北大核心
1998年第8期572-574,共3页
Chinese Journal of Medical Imaging Technology
关键词
颅脑肿瘤
磁共振成像
CT
Cranial neoplasm\ \ Magnetic resonance imaging\ \ X ray computed tomography
