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J Korean Cancer Assoc > Volume 29(6); 1997 > Article
Journal of the Korean Cancer Association 1997;29(6): 1100-1105.
Clinical Study of Stage I Renal Cell Carcinoma
Heeyoul Kim, Won Hee Woo, Duk Kyo Kim, Sei Kyung Rho, Sun Ju Lee, Sung Goo Chang
Department of Urology, School of Medicine, Kyung Hee University, Seoul, Korea.
ABSTRACT
PURPOSE:
This study was attemped to investigate the prognostic factors for the outcome of stage I renal cell carcinoma after radical nephrectomy.
MATERIALS AND METHODS:
Twenty nine patients treated from 1984 to 1995 at Kyung Hee University Medical Center were studied retrospectively. All of them were diagnosed with pathologic Robson stage I renal cell carcinoma after radical nephrectomy.
RESULTS:
Males were affected three times more frequently than females. The tumor was detected on the right kidney in 15 cases, and on the left in 14. Average follow up period was 36.6 months, average disease free interval was 29.4 months and median survival was 30 months. During the follow up, 9 patients (31.0%) expired due to liver and lung metastasis at postoperate 21.6 months on average. Eleven patients (37.9%) developed distant metastasis in the follow up. There was no local recurrence of tumor. Seventeen patients were diagnosed incidentally without clinical symptoms. In our retrospective study for stage I renal cell carcinoma, there were no predictive prognostic parameters for predicting the outcome of patients, except for the incidental diagnosis of the tumor.
CONCLUSIONS:
These results suggest that incidental diagnosis of the tumor may be the most important prognostic factor for the outcome of stage I renal cell carcinoma. Although the patients were confirmed as stage I renal cell carcinoma pathologically after radical nephrectomy, close follow up is very important, because of high incidence of metastasis. We recommand that chest X-ray, abdominal ultrasonogram and bone scan should be checked at 3 months interval for postoperative one year even though stage I renal cell carcinoma.
Key words: Stage I renal cell carcinoma;Radical nephrectomy;Metastasis;Early diagnosis
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