[Giant hydronephrosis of the upper left kidney in the case of complete, one-sided double pelvis]. / Olbrzymie wodonercze górnego bieguna nerki w przypadku calkowitego, jednostronnego zdwojenia górnych dróg moczowych.

We present the case of giant hydronephrosis in double pelvis of the left kidney. Patient was admitted to the urology department with hypertension and palpable giant mass in the abdomen. During imaging examination (CT, MRI ) the diagnosis of double pelvis and ureter on left side was established. The upper collecting system was extremely hydronephrotic and afunctional. Patient underwent partial nephrectomy - upper part of left kidney. We evacuated 9 liters of stagnated urine. After surgery blood pressure normalised, renal efficiency remained normal.