30例颅内胚生殖细胞肿瘤CT分析  

Report of 30 cases intracranial embryonal gonioma with CT analysis

作　　者：王月训[1] 

机构地区：[1]济宁市第一人民医院CT室,山东济宁272111

出　　处：《泰山医学院学报》2002年第1期36-38,共3页Journal of Taishan Medical College

摘　　要：目的　探讨CT在颅内胚生殖细胞肿瘤诊断及鉴别诊断中的价值。方法　回顾分析 30例经手术病理证实的颅内胚生殖细胞肿瘤CT平扫及增强后的影像学特征。结果　畸胎瘤 3例 ,表现为由三胚层组织构成的境界清晰的混杂密度块影 ,轻度不均匀性强化。皮样囊肿 7例 ,表现为类圆形境界清晰的略低密度块影 ,囊壁轻度强化。生殖细胞瘤 3例 ,呈类圆形混合密度块影 ,强化较明显但不均匀 ,常伴三脑室受压征象。表皮样囊肿 17例 ,呈不规则形边界清晰的低密度影 ,无强化征象。所有肿瘤周围脑组织均无明显水肿征象。结论　CT是颅内胚生殖细胞肿瘤术前定性诊断的最可靠方法之一 。Objective: To study the value of CT scan in the diagnosis and differential diagnosis of intracranial embryonal gonioma(IEG). Methods: The image characteristics of plain and enhanced CT scanning in 30 cases of IEG confirmed proved pathologically after operation were analyzed retrospectively. Results: Three cases were teratomas demonstrating combined density mass image consisting of triple embryonal tissues with clear boundaries and slightly uneven enhancement. Seven cases were dermoids showing mildly low density mass image with clear oval shaped boundaries and slightly enhanced cyst wall. Three cases were goniomas indicating oval shaped mass image with iso density and marked but uneven enhancement as well as compressed signs of the third ventricles of the brain. Seventeen cases belong to epidermoid cysts demonstrating low density image with irregular clear boundaries and non enhanced signs. No edematous signs around the tumors were found in all the cases. Conclusion: CT scanning is one of the most reliable techniques in the qualitative diagnosis of IEG preoperatively, and better results can be obtained by the combined application of plain and enhanced CT scanning.

关 键 词：诊断 颅内胚生殖细胞肿瘤 CT分析 

分 类 号：R739.41[医药卫生—肿瘤]