囊性肾癌的CT 诊断及鉴别诊断

目的 旨在提高囊性肾癌的术前正确诊断率。方法 复习经手术病理证实的囊性肾癌１０例及ＣＴ误诊囊性肾癌的出血性肾囊肿３例。结果 典型囊必 癌诊断铉高（９０％）。滞圾房间隔不规则增厚及囊壁经节，伴实性成分增强后有强化。囊肿内及囊肿周围肾实质内出现异常软组织影或密度变低为肿瘤另一征象。复杂肾囊肿术前不能完全与囊性肾癌区别，多种影像方法有助区别。结论ＣＴ在囊性肾癌的诊断及鉴别诊断中是有价值的常用检查方法；鉴

CT Diagnosis and Distinguish of Cystic Renal Carcinoma

Objective To improve ability of pre operation diagnosis of cystic renal carcinoma. Methods 10 patients with cystic renal carcinoma and 3 patients with hemorrhage cyst(which were mistaken for carcinoma by CT)who pathologically proved were reviewed retrospectively. Results The correct diagnosis of cystic renal cancer is 90%.The CT findings of tumors are irregular thickening of the cystic wall and interval and substance enhancement after contrast administration and were considered as characteristic.It is another sign as diagnostic cancer that present abnormal or lower density soft tissues inside or around the cyst.Before operation it is difficulty to differ complex cyst from cystic renal cancer,a few images examination are helpfully. Conclusion The CT is useful way in diagnosis cystic renal cancer.The distinguish between cystic renal cancer and complex cyst are hard to combine other images or thereby close follow up studies or needle aspiration biopsy/operation might be needed.