心包转移瘤的CT表现

目的分析和总结心包转移瘤的CT表现特征，为早期诊断和治疗提供帮助。方法对37例经临床病理确诊的心包转移瘤的CT图像以及临床资料进行分析。主要观察指标包括：有无心包增厚、心包积液、纵隔淋巴结肿大以及直接侵犯等。结果32例（86．5％）出现心包积液（其中轻度心包积液有2l例，中一重度积液为11例）；28例（75．6％）有心包增厚或结节，其中弥漫性不均匀增厚者有15例，厚度为4～7mm；出现结节或肿块者13例，结节的直径为5—12mm，其中9例为实性结节、另4例为囊实性结节；15例（40．5％）并纵隔淋巴结肿大（肿大的淋巴结主要分布于隆突下、主肺动脉窗和肺门等处）。共10例直接侵犯心包，表现为心包壁层被突破、肿块突入心包腔。结论心包转移癌在CT上多表现为心包积液、心包增厚、纵隔淋巴结肿大以及心包直接受侵犯等。CT对心包转移癌的诊断及治疗方法选择有帮助，但最终确诊仍需依靠病理学检查。

CT imaging features of pericardial metastases

Objective To assess CT imaging features of pericardial metastases, and help to early diagnosis and manage- ment. Methods This retrospective study included 37 patients. CT images were reviewed for the presence of pericardial thickening, the pattern of pericardial thickening, and the presence of pleural effusion and mediastinal lymph node enlarge- ment. Results Of these 37 patients with pericardial metastasis ,32（ 86.5% ） had pericardial effusion（ small in 21/32 and moderate to large in 11/32 patients） ;28 （75.6%） patients had pericardial thickening or nodules ; and 15 （40.5%） pa- tients had mediastinal lymph node enlargement. Conclusion Most frequent CT features of pericardial metastases included perieardial effusion, perieardial thickening, and mediastinal lymph node enlargement. CT were helpful for the diagnosis and treatment of pericardial metastases. Histological examination was necessary for the final diagnosis.