颅内生殖细胞性肿瘤的CT诊断  

CT Diagnosis of Intracranial Germ-cell Tumors

作　　者：蒋黛蒂[1] 韩开南[1] 

机构地区：[1]新疆医学院第一附院CT室,830000

出　　处：《影像诊断与介入放射学》1994年第4期214-216,307,共4页Diagnostic Imaging & Interventional Radiology

摘　　要：笔者回顾性分析了37例颅内生殖细胞性肿瘤的临床及CT表现。认为此类肿瘤的特点是好发于儿童和青年。多发生在中线区及其邻近的脑组织内。松果体区、鞍区多发瘤灶具有特征性。恶性生殖细胞性肿瘤呈显著强化,部分病灶内可见小虫蚀样低密度及小囊变区,病灶边缘毛糙、不规则、向周围组织浸润生长。肿瘤易沿脑室、蛛网膜下腔及脊髓腔种植、转移。肿瘤对放疗敏感,也易复发。良性生殖细胞性肿瘤(畸胎瘤)表现为囊性及钙化的混合密度病灶,边界清楚。对放疗不敏感。本文从病理学的角度对上述表现进行了讨论。并与颅内其它肿瘤进行了鉴别诊断。The CT findings and clinical manfestations of 36 cases intracranial germ-cell tumors (GCT) were reported. These tumors had following features: (1)frequently oc-cured in adolescence and young adulthood; (2)arose along the midline from the suprsellar cistern to the pineal gland. Malignent GCT showed (1)marked enhancement; (2) irregular margin; (3)cystic areas and (4)planting along intraventricles.subarachnoid spaces and spinal chamber. It was sensitive to radiation therapy. The benign GCT (teratoma) showed cystic and calcification. In this paper the pathololgic basis of CT differential diagnosis were diss-cused.

关 键 词：生殖细胞性肿瘤 颅脑 断层摄影术 X线计算机 

分 类 号：R739.4[医药卫生—肿瘤]