摘要
目的:探讨肾平滑肌肉瘤的CT表现。方法:对5例经病理证实的肾平滑肌肉瘤的CT征象进行回顾性分析。结果:5例肿块最大径均>5cm。CT平扫示1例呈均匀高密度,2例呈等密度,2例呈高低混杂密度。增强扫描时1例呈均匀强化,4例肿块呈不均匀强化,其内见明显的坏死、囊变征象。结论:肿块巨大、坏死囊变明显及肿块内出血为肾平滑肌肉瘤的主要CT表现,但其CT及临床表现均与肾癌相似,术前鉴别困难,最终确诊依靠病理学检查。
Objective： To discuss the CT manifestations of renal leiomyosarcoma. Methods： 5 cases of renal leiomyosarcoma proved by pathology were analyzed retrospectively. Results： The diameter of all of the lesions is larger than 5cm. The masses on unenhanced CT images showed homogeneous hyperattenuation （n=1）, medium attenuation （n=2） and heterogeneous （n=2）. After contrast medium administration, homogeneous enhancement （n=1 ）, heterogeneous enhancement with cystic and necrotic areas （n = 4） can be revealed. Conclusion： Large renal mass with intra-tumor necrosis, cystic and hemorrhagic change is the characteristic manifestations of renal leiomyosarcoma. But differential diagnosis from renal carcinoma by CT and clinical setting is difficult before surgery,and final diagnosis should depended on pathology examina tion.
出处
《放射学实践》
2005年第9期801-802,共2页
Radiologic Practice
