This study is planned to include patients from S.I. Spasokukotskiy Citi Clinical Hospital with simple renal accidentally discovered cyst.~The aim of the study is to evaluate the impact of simple renal cysts on renal function and explore the correlation between cyst's size, parenchymal atrophy, and renal function.~After receiving the results, the analysis of the data obtained is carried out.~The symmetry of the function of both kidneys is analyzed~The relationship between the presence of a simple kidney cyst and a decrease in its function in comparison with a healthy kidney is analyzed.~The relationship between the maximum size of a kidney cyst and a decrease in its function in comparison with a healthy kidney is analyzed.~The relationship between the volume of the atrophied kidney parenchyma and a decrease in its function as compared with a healthy kidney is analyzed.~Correspondence of GFR indices obtained by scintigraphy and by calculation using the Schwartz formula
This is a prospective, cohort, randomized clinical trial examining the effect of simple renal cysts on renal function.