Clinical features and results of surgical treatment of bilateral renal cancer

Renal cancer morbidity grows in most of the developed countries. Incidence of bilateral renal cell carcinoma, per various authors, amounts to 2–6 % of all cases of this disease. The study included 160 patients with bilateral kidney cancer who received surgical treatment at the N.N. Blokhin National Medical Research Center of Oncology in the period from 1996 to 2014. Median follow-up duration for all patients included in the analysis was 81.05 ± 46.7 months. In our study, the groups for synchronous and metachronous cancer were equal (n = 80) and constituted 3.5 % of all cases of kidney cancer. For synchronous and metachronous cancer types, the most common concomitant disease was arterial hypertension. The most common morphological variant for the first, as well as the second, kidney tumor was clear cell carcinoma. Smoking and ischemic heart disease as a concomitant pathology negatively affected relapse-free and overall survival. Overall 5-year survival for synchronous renal cancer was 84.4 ± 4.2 %, for metachronous – 64.8 ± 9.3 %