Comparison of Morphological and Radiological Data in Patients With Urolithiasis

Inclusion Criteria for experimental group: 1. Men and women \>18 years and \<45 years old; 2. Established diagnosis of urolithiasis that does not interfere with the processes of urodynamics (there is no expansion of the overlying urinary tract); 3. Planned surgery - percutaneous nephrolithotripsy; 4. Stone size up to 20 mm., Patients with multiple small two-sided stones; 5. Patients with CT of the kidneys with contrast enhancement performed according to the required protocol. Exclusion Criteria for experimental group: 1. Age \< 18 years old or ASA\> 3; 2. With single kidney; 3. Patients with coral stones; 4. The presence of concomitant systemic pathology (DM, AH), as well as kidney disease (glomerulonephritis), which can change the state of the renal parenchyma; 5. A history of injuries and surgical interventions on the kidneys, urinary tract, renal vessels; 6. Taking nephrotropic drugs; 7. Systemic intake of nephrotoxic drugs; 8. Severe general somatic condition, making the operation impossible; 9. Pregnancy. Inclusion Criteria for control group: 1. Men and women \>18 years and \<45 years old; 2. Absence of urolithiasis in the patient's anamnesis and in his family history; 3. Renal tumors which have undergone partial nephrectomy or nephrectomy; 4. Patients with CT renal data with contrast enhancement, performed according to the required protocol. Exclusion Criteria for control group: 1. Urolithiasis in anamnesis; 2. A history of trauma and surgical interventions on the kidneys, urinary tract, renal vessels; 3. Intercurrent background; 4. Non-informative biopsy.