原发性纵隔肿瘤的CT诊断

目的探讨纵隔肿瘤的CT特征以及CT检查对纵隔肿瘤的诊断价值。方法回顾性分析经手术病理证实的纵隔占位性病变21例,均行CT平扫及增强扫描检查。结果21例中,淋巴瘤3例,胸腺瘤4例,畸胎瘤3例,神经纤维瘤3例,神经鞘瘤2例,神经节细胞瘤2例,胸内甲状腺1例,气管、支气管囊肿3例。肿瘤体积多较大,常占据多个纵隔分区,增强扫描可了解肿块与周围组织结构的关系,冠状位或矢状位重建有利于显示颈胸联合性占位。结论CT检查对纵隔肿瘤的诊断及鉴别诊断具有重要的价值。

CT diagnosis of primary mediastinal neoplasms

Objective To investigate the CT features of primary mediastinal tumors and to assess CT diagnostic value for them.Method Twenty one patients examined with plain and contrast CT scanning were reviewed retrospectively. All the cases were confirmed by operation or/and pathology.Results In 21 cases,there were 3 lymphomas,4 thymomas,3 teratomas, 7 neurogenic tumors, thyroid gland of intrathoracs and 3 trachea or bronchi cysts. Most of the mediastinal neoplasms had a large dimension on CT image and were situated in two or more mediastinal districts. Contrast CT scan clearly displayed the relation between the tumor and the adjacent tissues. Saggital or coronal reconstruction was helpful to demonstrate the masses such as thyroid gland of intrathoracs. Conclusion CT is of important in the diagnosis and differential diagnosis of mediastinal neoplasms.