摘要
目的:本文通过对良、恶性胸腺瘤的CT特征分析,试图提高对二者CT鉴别诊断的准确性。材料和方法:回顾性地分析经手术病理证实的胸腺瘤,其中良性14例,恶性19例。结果:良性胸腺瘤(14例)平均直径4.5cm,呈类圆形。除2例有点状钙化外,密度均匀,包膜完整,与周围大血管呈锐角。恶性胸腺瘤(19例)平均直径7.0cm,仅6例呈类圆型,9例分叶状,4例呈不规则浸润生长;6例包膜完整,9例不完整,4例无包膜;密度均匀14例,5例不均匀;9例与周围大血管呈锐角,5例呈钝角,5例包绕大血管。结论:CT诊断恶性胸腺瘤的可信性相当高,本文达100％,而良性胸腺瘤的相对较低,本文为77％。
Purpose: By analysing CT features of benign and malignant thymoma proved pathologically, To improve the accuracy of CT diffenertial diagnosis. Materials and Methods: Retrospective analysis of CT findings was made in 14 cases of benign and 19 cases of malignant thymoma proved pathdogically. Results; Benign thymona (14 cases) demonstrated, round - like shape, 4.5 cm in mean diameters and homogeneousdensity except two cases 'with dotted calcification. All benign lesions had complete capsule and contracted the nearby great blood vessels with accute angles. But among malignant thymoma (19 cases), 7.0 cm in mean diameters, only 6 cases had round - like shape, 9 cases had lobulated shape, and 4 cases infiltrative unregular shape; 6 cases showed complete cpsules, 9 cases incomplete capsules, and 4 cases no capsules. Homogeneous density was found in 14 cases, and unhomogeneous density 5 cases. 9 cases had acute angles with the nearby great vessels, 5 cases had obtuse angles, and in 5 cases the tunors surrounded the vessels. Concul-sion; The confidencity of the CT in diagnosis of malignant thymoma is fairly higher (100%) than that of benign thymoma (77%)
出处
《影像诊断与介入放射学》
1998年第1期7-9,共3页
Diagnostic Imaging & Interventional Radiology
