CT对原发性肺肉瘤的诊断价值

Diagnostic value of CT on primary sarcoma of lung

目的:探讨原发性肺肉瘤的CT表现及诊断价值。方法:回顾性分析3例经病理证实的原发性肺肉瘤的临床和CT检查资料并复习文献。结果:平滑肌肉瘤2例、纤维肉瘤1例,3例均为周围型。周围型表现为肺内巨大圆形肿块,密度不均,边缘光滑,增强明显强化,胸腔少量积液,无纵隔及肺门淋巴结转移。结论:肺内较大肿块,边缘光滑,常侵犯胸膜,很少肺门及纵隔淋巴结转移,应该考虑周围型肺肉瘤可能。中央型肺肉瘤CT表现难与肺癌鉴别。

Objective：To evaluate the CT findings and diagnostic value on primary sarcoma of lung.Methods：3 cases of primary sarcome of lung proved by biopsy were analyzed retrospectively.Results ：There were leiomyosarcoma（n=2）,fibrosarcoma（n=l）,all were peripheral types（n=3）.The peripheral type showed giant round mass in lung with smooth edge,inhomogeneous density,obvious enhancement, small amount of pleural effusion ,without enlargement of lymph node of the hilum and mediastinum.Conclusion ：We will consider it is primary sarcoma of lung,if it is located in peripheral part of the lung ,smooth edge ,pleural invasion,but rarely metastasize to the lymph node of mediastinum or hila. It is diffficult to indcntify the central type of primary sarcoma of lung from bronehogenic carcinoma in CT scanning.