What is the meaning of double renal pelvis ureteral dilatation

Double ureteropelvic dilatation means abnormal dilatation of the renal pelvis and ureter on both sides.

Double ureteropelvic dilatation refers to changes in the structure of the renal pelvis and ureter on both sides. It may be caused by stones in the renal pelvis and ureter. It can also be considered that the disease is related to inflammation. It may be caused by ureteritis. Inflammation repeatedly stimulates the ureter to cause local tissue proliferation, causing urinary tract obstruction, thus forming hydronephrosis. Hydronephrosis may continue up to the renal pelvis, so there will be double ureteropelvic dilatation.