肾区恶性病变往往因无泌尿系统临床症状而被忽视。我院于1997年7月27日体检普查时发现肾透明性细胞癌一例，现报道如下：患者男性，干部，49岁，入院前无任何不适症状，在我院B超发现右肾中上极见2．2×2．0厘米的强回声，边界清晰，提高肾内异常回声（考虑肾癌），建议住院手 Nephrotic malignancies are often overlooked because of no clinical signs of urinary system. Our hospital in July 27, 1997 physical examination found that a case of renal clear cell carcinoma, are reported as follows: Male patients, cadres, 49 years old, without any symptoms before admission, found in our hospital B-right upper pole See 2.2 × 2.0 cm strong echo, the boundary is clear, improve the abnormal renal echo (consider kidney cancer), recommended hospitalization