偶发性肾癌是指无临床表现，在体格检查中偶然发现的肾癌。近年来，由于Ｂ超等检查的普及，偶发性肾癌的发病率有升高的趋势。我科自１９９０年１月～１９９７年１２月共收治２５例偶发性肾癌，同期收治临床有症状肾癌８７例，对两组病例的临床资料进行比较分析，现报告如... Occasional kidney cancer is defined as a kidney cancer that is found in a physical examination without clinical manifestations. In recent years, the incidence of sporadic renal cancer has risen due to the spread of B-ultrasound tests. In our department from January 1990 to December 1997, 25 cases of occasional renal cell carcinoma were treated and 87 cases of clinically symptomatic renal cell carcinoma were treated in the same period. The clinical data of the two groups were compared and analyzed. The current report is...