少或无脂肪型肾血管平滑肌脂肪瘤CT误诊原因探讨

目的探讨少或无脂肪型肾血管平滑肌脂肪瘤的误诊原因及对策。方法结合文献对临床经手术及病理证实的6例肾血管平滑肌脂肪瘤进行回顾性分析。结果少或无脂肪型肾血管平滑肌脂肪瘤CT及临床缺乏特征性,6例均误诊为肾癌。结论少或无脂肪型肾血管平滑肌脂肪瘤诊断困难,应结合多种影像学特点,采取薄层平扫及局部放大可以提高本病的诊断率。对于确实难以诊断的,应采取手术的方法切除肿瘤。

Objective To explore the cause of and countermeasure against misdiagnosis of less or no fat renal angiomyolipoma （RAML）. Methods six cases of misdiagnosed less or no fat RAML by surgery and pathology were reviewed retrospectively. Results less or no fat RAML were lack of character of CT and clinic, All six cases were misdiagnosed as renal cell carcinoma. Conclusion It＇s difficult to diagnose less or no fat RAML, many kinds of imaging features will be combined , CT thin thickness scan and local expand can raise the diagnositic rate,if some cases are too difficult to diagnosed, that will be operated to cut off the tumor.