A ureteropelvic junction (UPJ) obstruction is a blockage in the upper end of your ureter (renal pelvis). In most cases, it occurs during fetal development. But it can occur in adults, too, sometimes after a kidney stone or surgery in the area. In some infants, it may get better without treatment. But others may need surgery.

Ureteropelvic junction (UPJ) obstruction is a blockage in the area that connects the renal pelvis (part of the kidney) to one of the tubes (ureters) that move urine to the bladder. It generally occurs when a baby is still growing in the womb.

Jul 10, 2023 · Ureteropelvic junction obstruction (UPJO) is a well-recognized clinical entity that results in impaired urine flow from the renal pelvis into the ureter and, if not detected and treated properly, can result in complete loss of the affected kidney.

The obstruction impedes the flow of urine down to the bladder, causing the urine to back up in the kidney and dilate it (hydronephrosis). Unilateral UPJ obstruction is the most common prenatally detected obstructive disease, often picked up on maternal ultrasounds during pregnancy.

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.

Nov 12, 2024 · Ureteropelvic junction (UPJ) obstruction or pelviureteric junction (PUJ) obstruction partially obstructs the passage of urine from the renal pelvis to the ureter. It is the most frequent cause of hydronephrosis in the foetus and can also present in adulthood.

Ureteropelvic junction (UPJ) obstruction is when part of the kidney is blocked. Most often it is blocked at the renal pelvis. This is where the kidney attaches to one of the ureters (the tubes that carry urine to the bladder).

A ureteropelvic junction obstruction (UPJO) is a blockage of urine flow from the renal pelvis to the ureter. The renal pelvis is the part of the kidney that collects the urine made by the kidney and the ureter is the tube that carries the urine from the renal pelvis to the bladder (see figure 1).

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.

Ureteropelvic junction (UPJ) obstruction occurs when the area where the ureter and kidney meet becomes blocked by scar tissue, kinking, a blood vessel or, more rarely, a tumor. This can harm kidney function and lead to flank pain on the affected …