颅内畸胎瘤MRI表现分析  

MRI Diagnosis of Intracranical Teratomas

作　　者：张素艳[1] 姜文祥 桑雅荣[1] 

机构地区：[1]辽宁葫芦岛市中心医院放射科 [2]锦西炼油化工总厂职工医院外科

出　　处：《中国医学计算机成像杂志》2009年第3期227-229,共3页Chinese Computed Medical Imaging

摘　　要：目的:探讨颅内畸胎瘤的MRI表现,以提高对本病的认识。方法:收集20例经手术和病理证实的畸胎瘤患者,对其MRI表现进行对照分析。结果:颅内畸胎瘤存在形式多种多样,其中囊性5例,囊实性3例,实性12例;中线及中线旁19例,非中线部位1例;合并出血2例,破裂3例,混合胶质瘤1例;术前误诊4例。找到脂肪成分是关键。结论:通过MRI多方位、多角度、多序列成像及增强扫描,大部分畸胎瘤具有特征性影像表现,可于术前作出定位及定性诊断。Purpose： To analyze the MRI features of intracranial teratoma and to improve the accuracy of diagnosis. Methods： Twenty patients with intracranial teratomas verified by operative pathology were analyzed with MRI. Results： The manifestations of intracranial teratomas were variable. Of our 20 cases of teratomas, 5 were cystic, 3 were cystic and solid, 12 were solid; 19 were in the central line area and 1 was not; 2 were combined with bleeding, 3 were ruptured, and 1 was with glioma. Four cases were misdiagnosised, and the found of fat was the key to diagnose correctly. Conclusion： Multi - planar, multi - angle, multi - sequence imaging and contrast enhancement in MRI are helpful to the diagnosis of teratomas.

关 键 词：畸胎瘤 磁共振成像 颅脑 

分 类 号：R739.4[医药卫生—肿瘤]