胸腺瘤CT诊断研究

The CT Diagnosis and Study of Thymoma

目的 通过胸腺癌的CT征象研究,有利于胸腺瘤的分期及有效治疗。方法 对经手术及病理证实的胸腺瘤42例征象分析,着重研究了病变的形态,病变对周围组织的侵袭,累及纵隔胸膜以及纵隔转移等表现。结果 42例胸腺瘤CT扫描均显示为前纵隔软组织肿块,其中密度不均匀者26例,占62％;形态不规则者31例,占74％;邻近组织受累者35例,占84％。其主要征象为纵隔胸膜、肺组织、心血管受累,胸膜种植等。结论 CT扫描可显示胸腺瘤的形态、大小、密度,以及对周围组织累及状况,可提示胸腺瘤的良、恶性诊断,对决定治疗方案有价值。

Objective To study the CT manifestation of thymoma for staging and treatment planning. Methods We reviewed and studied the CT scans of 42 patients with thymoma comfirmed by surgery and pathology with emphasis on lesion density, figure relationship and invasion of adjacent mediastinal structure, pleural seeding mediastinal nods and mediastinal melastases. Results In 42 cases of thymoma,all CT scans demonstrated the soft tissue mass in anterior mediastinum. Heterogeneous density tissue mass in 26 patients was 62%,irregular tissue mass in 31 patients was 74%,invasion to adjacent organs in 35 patients was 84%.The main manifestation was mediastinal pleura invasion,lung invasion,cardiovascular involvement,pleural implant. Conclusion Computed tomography demonstrates figure,density of thymoma and invasion to adjactive tissue,and it can reach a high accuracy in differentiating benignity and malignancy. CT is valuable in allowing treatment planning.