颅内生殖细胞瘤的临床及影像学分析  

Clinical and MRI features of the intracranial germinoma

作　　者：韩仰同[1] 戴建平[2] 

机构地区：[1]北京积水潭医院神经科,100035 [2]首都医科大学附属北京天坛医院

出　　处：《北京医学》2006年第12期708-711,共4页Beijing Medical Journal

摘　　要：目的分析颅内生殖细胞瘤的临床表现及影像特征。方法收集经手术和病理证实的、影像资料完整的颅内生殖细胞瘤患者112例的临床资料,并进行影像学分析。结果112例中,松果体区生殖细胞瘤57例,占颅内生殖细胞瘤的50.9%,鞍区38例,丘脑和基底节区17例。松果体区生殖细胞瘤为等T1,等或稍长T2信号,均匀、明显强化;鞍区生殖细胞瘤囊根据具体部位不同,将其分为三类。丘脑和基底节区多表现为混杂T1和混杂长T2信号,斑片样、囊壁环形强化,或环形分隔样增强。结论颅内生殖细胞瘤的发病性别、年龄、好发部位及MRI具有一定特殊性,多数情况下可做出正确诊断。Objective To study the clinical and MR features of intracranial germinoma. Methods 112 cases of intracranial germinoma were confirmed by operation and pathology. Results Fifty seven tumors were located in pineal region, 38 tumors were in sellar region, 17 tumor were in basal ganglia and thalamus. The age ranged from 1 to 32 years. The pineal region germinoma demonstrated equal T1 and long or equal T2 signal on MRI, and had evident and homogeneous enhancement. The sellar region germinoma was classified into three classes based on its location; the germinoma in basal ganglia and thalamus had mixed TI and mixed T2 signal on MRI and had evidently hetergeneous enhancement. Conclusions The intracranial germinomas have specific features in sex, Location, age and MRI, therefore it is possible to make accurate preopertive diagonosis.

关 键 词：生殖细胞瘤 颅内 磁共振成像 

分 类 号：R739.4[医药卫生—肿瘤]