Clinical Analysis of Incidentally Found Renal Cell Carcinoma: Experiences of Recent 8 Years

Lee, Hae Won; Cho, Kyu Seon; Jeong, Hyeon; Yoon, Sang Jin; Jo, Moon Ki; Lee, Eun Sik; Lee, Sang Eun; Choi, Hwang; Lee, Chongwook

Abstract

PURPOSE: The clinical information and survival rate of incidentally found renal cell carcinoma patients were compared with those of symptomatic patients.
MATERIALS AND METHODS
We reviewed the hospital records of 267 patients with renal cell carcinoma managed in Seoul National University Hospital during the recent 8 years. Mean followup period was 26+/-21.1 months. Initial presentations, pathologic stages, and survivals were analysed.
RESULTS
In 124 patients(46.4%), the tumors were found incidentally. Hematuria, pain and mass were the common presentations in symptomatic patients. The more patients with lower stage(stage T1 and T2) belonged to incidentally found group compared with symptomatic group(81.5% vs 64.3%). The 2 and 5-year survival rates of incidentally found group were 78% and 67%, respectively, which were higher than those of symptomatic group(72% and 56%). The survival rate decreased markedly by increasing size, advanced stage, lymph node involvement and distant metastasis.
CONCLUSIONS
Recently, there has been a significant increase of incidentally detected renal cell carcinoma and the incidentally found renal cell carcinoma proved to have better prognosis than symptomatic group. So our effort should be focused on detecting low stage incidentallomas.