小肾癌76例临床分析

Small renal cell carcinoma (report of 76 cases)

目的 探讨小肾癌 (SRCC)的临床症状、影像学特征、分级分期与预后的关系。 方法 选择直径≤ 3cm的小肾癌患者 76例。其中有血尿、腰痛的 17例计为症状组 (2 2 .4 % ) ,健康体检或因其它疾患就诊偶然发现的 5 9例 (77.6 % )计为无症状组。 6 9例行B超检查 ,诊断率 84 .1% ;76例行CT检查 ,诊断率 94 .7%。 结果 76例患者均行经腰部斜切口根治性肾切除术 ,病理诊断均为透明细胞癌。术后随访 32～ 87个月 ,平均 6 2 .7个月。症状组和无症状组术后 1、3、5年无瘤生存率分别为 10 0 .0 %、5 3.3%、33.3%和 10 0 .0 %、90 .6 %、77.4 % ,两组 3年和 5年生存率差异均有显著性意义 (P <0 .0 5 )。 结论 小肾癌的早期诊断主要依赖B超和 (或 )CT等影像学检查。无症状患者的远期无瘤生存率显著高于有症状患者。

Objective To investigate the association of prognosis with clinical features,tumor imaging,and pathological grading and staging in small renal cell carcinoma(SRCC). Methods The clinical data of 76 cases of SRCC (no more than 3 cm in diameter) were analyzed retrospectively.According to the clinical symptoms,they were divided into two groups,symptomatic (hematuria and lumbago) group (n=17,accounting for 22.4%) and asymptomatic group (n=59,77.6%).All the 76 cases underwent CT scan,with the diagnosis rate of 94.7%;69 cases underwent B-ultrasound examination with the diagnosis rate of 84.1%. Results All the 76 cases underwent radical nephrectomy through oblique incision in the lumbus.The excised tumors were pathologically confirmed to be clear cell carcinoma.The patients were followed up for 32 to 87 months(mean,62.7 months).The 1-,3-,and 5-year cancer-free survival rates of the symptomatic and asymptomatic groups were 100% and 53.3%,33.3% and 100%,90.6% and 77.4%,respectively.There were statistically significant differences between the two groups in the 3- and 5-year cancer-free survival rates (P<0.05). Conclusions The early diagnosis of small renal cell carcinoma mainly depends on imaging examination such as B-ultrasound and (or) CT scan.The long-term cancer-free survival rate of asymptomatic patients is significantly higher than that of symptomatic patients.