胸腺瘤的CT和平片分析

目的　探讨胸腺瘤的X线与CT诊断价值。方法　分析 30例经手术病理证实的胸腺瘤X线和CT表现 ,并与病理对照。结果　 18例非侵袭性胸腺瘤 ,胸片仅发现 15例 ,CT扫描 10例 ,均为前纵隔软组织肿块 ,边界清楚 ,密度均匀。 12例侵袭性胸腺瘤 ,肿瘤侵犯邻近器官 ,CT显示纵隔胸膜受侵 3例 ,心包受侵 2例 ,大血管结构受侵 2例 ,胸膜种植 3例 ,胸腔积液 2例 ,腹腔受侵和纵隔淋巴结转移各 1例 ;胸片仅能显示 1例肿瘤侵犯纵隔胸膜和 1例胸膜种植。结论　CT扫描在胸腺瘤的发现和判别侵袭性方面明显优于X线平片并且是可靠预测胸腺瘤侵袭性的检查方法。

The CT and X-ray Analysis of Thymoma

Objective To explore the value of imaging diagnosis of thymoma.Methods The authors restrospectively studied the correlations of X-ray,CT fingings and pathology of 30 thymomas.Results Noninvasive thymomas(n=18),15 of 18 tumors were seen on chest films;10 of 18 was given CT scans and demonstrated the soft tissue masses in anterior mediastinum with clear margins and homogeneous density.12 invasive thymomas showed adjacent organs were invasived on CT,including the mediastinal pleura invasion(n=3),pericardial invasion(n=2),great vessels invasion(n=2),pleural implants(n=3),pleural effusion (n=2),abdominal cavity invasion(n=1),mediastinal lymphadens metastasis(n=1).On chest films only 2 cases seperately displayed mediastinal pleura invasion and pleural implant.Conclusion CT scans is a valuble imaging technolegy for calculating invasive thymoma.