Ureteropelvic Junction Obstruction (adult) Ureteropelvic junction (UPJ) obstruction is a condition where the ureter, the tube that connects the kidney to the bladder, is blocked at the top portion where it leaves the kidney. Ureteropelvic junction (UPJ) obstruction is a partial or total blockage at the place where the organ that produces urine (the kidney) and the tube that carries it to the bladder (the ureter) are joined.
Ureteropelvic junction (UPJ) obstruction is a blockage in the renal pelvis of the kidney. The renal pelvis is located at the upper end of each ureter (tube that drains urine from the kidneys to the bladder). The renal pelvis, which is shaped like a funnel, collects urine. In . Overview Ureteropelvic junction (UPJ) obstruction occurs when the area connecting the renal pelvis (part of the kidney) to one of two tubes that connect with the bladder (ureter) becomes blocked, causing urine to build up, which damages the kidneys. A UPJ obstruction can also occur if a blood vessel is positioned incorrectly over the ureter.
Ureteropelvic junction (UPJ) obstruction refers to the blockage of normal urine from the kidney to the bladder. UPJ obstruction occurs at the point where the kidney joins the ureter. Ureters are small tubes (less than 5 mm in diameter) that connect the kidney to the bladder. Diagnosing Ureteral Stricture in Adults NYU Langone urologists are experts in diagnosing ureteral stricture, which is a narrowing of one of the ureters—tubes that carry urine from each kidney to the bladder. This narrowing causes an obstruction in the flow of urine.
Jan 01, · Ureteropelvic junction obstruction (UPJO) is a benign, congenital condition that remains an enigma in terms of both diagnosis and therapy. Ureteropelvic junction (UPJ) obstruction is caused when the connection between the ureter and the renal pelvis of the kidney (ureteropelvic junction) is blocked—or narrower than normal—and urine builds up behind the obstruction. This can cause the affected kidney to swell (hydronephrosis).