Prognosis of renal cell carcinoma coexisting with renal cystic diseases: Results of nation-wide survey in Japan

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Abstract

(Objective) To study the outcome of the patients with renal cell carcinoma (RCC) coexisting with renal cystic disease. (Subjects and Methods) The nation-wide survey conducted in 1989 enrolled 223 patients with RCC coexisting with renal cystic disease. Of those 223, we could follow up 216 patients in the second survey in 1994. (Results) Renal cystic diseases coexisting with RCC included simple renal cysts in 69 cases, acquired cystic disease of the kidney (ACDK) in 61, cystic RCC in 54, multilocular renal cysts in 19, polycystic kidney in 3, miscellaneous cysts in 9, and unspecified cyst in 1. The overall 5-year survival was 84%. The mean survival of the patients without any symptoms was significantly higher than that of those with symptoms. The survival of those with ACDK was lowest, and that will cystic RCC was highest. The survival was significantly different between the two groups, however the disease specific survival excluding the effect of dialysis was not significantly different between the two groups. Regarding TNM category, those with pT1 or pT2, comprising 87% of the subjects, carried a prognosis more favorable than those with pT3 or pT4. Among those undergoing cyst puncture (47 patients), positive cytology resulted in poorer prognosis. However, there was no such difference in the prognosis between punctured group and non-punctured group. (Conclusion) Those with RCC coexisting with renal cystic disease carried a favorable prognosis. Cyst puncture were not concluded to exert an unfavorable effect on the prognosis at least in this study.

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Hatano, T., Koyama, Y., Hayakawa, M., Yoshihide, O., & Osawa, A. (1997). Prognosis of renal cell carcinoma coexisting with renal cystic diseases: Results of nation-wide survey in Japan. Japanese Journal of Urology, 88(6), 624–631. https://doi.org/10.5980/jpnjurol1989.88.624

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