摘要 自1985～1996年诊治3cm以下肾癌34例。其中无任何临床症状由体检发现者23例(67.6%)，血尿5例(14.7%)，腰痛4例(11.8%)血尿及腰痛均有者1例，因慢性肾功能不全经B超检查发现1例。行根治性肾切除29例，单纯性肾切除2例，行肾肿瘤剜除术2例，术前误诊为肾盂癌而行肾输尿管全长切除1例。病理结果：透明细胞癌32例(94.1%)，颗粒细胞癌1例，混合型(透明细胞癌+颗粒细胞癌)癌1例。PT₁ 10例，PT₂ 24例。30例(88.2%)获得随访，平均随访时间38.7个月。无癌存活者29例，术后存活超过5年者7例，其中1例术后第6年死于肺转移。

    Small renal cell carcinoma Pan Bainian, Wang Tian, Yang Yong, et al. Institute of Urology, Beijing Medical University, Beijing 100034

    Abstract From 1985 to 1996,34 cases of small renal cell carcinoma(diameter of the tumor less than 3cm)were treated. 23 patients (67.6%) were asymtomatic while 5(14.7%)complained of hematuria and 4(11.8%)of lumbago. 29 patients were treated with radical nephrectomy, 2 with simple nephrectomy, 2 with NSS and 1 with nephroureterectomy as being misdiagnosed as carcinoma of the renal pelvis. On pathological studies, the tumor was a clear cell carcinoma in 32(94.1%), granular cell carcinoma in 1 and mixed in ano-ther. 10 patients were PT₁ stage and 24 PT₂ stage. 30(88.2%)of the patients have been followed up with a mean follow up time of 38.7 months. 29 patients have been cancer-free survival, 7 of them survived over 5 years. 1 of the 7 died of lung metastasis at 6 years postoperatively. The diagnosis, treatment and prognosis of small renal cell carcinoma were discussed.

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