Tuberculous pyelitis showed deformed renal pelvis, filling defect and hydronephrosis.

结核性肾炎CT表现为肾分肾大盏变形、盈缺损积水。

Stagnation of urine in the kidney pelvis seems to greatly encourage pyelitis.

来，肾内尿潴留可能大大地促使肾肾炎的发生。