Inhoudsopgave
Wat is Puj stenose?
Bij een Pyelo-ureterale junctiestenose (PUJ) is de overgang van het nierbekken naar de urineleider vernauwd. Het nierbekken (pyelum) verzamelt de urine die de nier produceert voordat ze via de urineleider (ureter) afvloeit naar de blaas. Door de vernauwing wordt de afvloei van de urine gedeeltelijk belemmerd.
Wat is Subpelviene stenose?
Sub-pelviene stenose is een vernauwing in de overgang van het nierbekken naar de urineleider. Dit is een zeldzame ziekte, waarbij de uitgang van het nierbekken te klein is. Daardoor stroomt urine moeilijk uit de nieren naar de blaas.
What is UPJ obstruction?
UPJ obstruction may be diagnosed before birth but it is also found in adults. Excess urine builds up within the kidney — called hydronephrosis — and may be seen on an ultrasound. Scar tissue, kidney stones, previous surgery or disorders of the upper urinary tract can also lead to UPJ obstruction.
How to diagnose ureteropelvic junction (UPJ) obstruction?
Ureteropelvic Junction (UPJ) Obstruction 1 Symptoms. UPJ is usually present at birth (congenital) and is most frequently diagnosed during a prenatal ultrasound. 2 Diagnosis. A renal ultrasound is used to detect a UPJ obstruction prenatally. 3 Treatment. Surgery is usually required if a UPJ obstruction is affecting kidney function.
What causes the UPJ to become distorted?
An abnormal crossing of blood vessels can press on or distort the UPJ. Less frequently, UPJ obstructions may form in adults as a result of kidney stones, upper urinary tract infections, surgery, an abnormally crossing blood vessel or swelling in the urinary tract.
What are the signs and symptoms of UPJ obstruction after birth?
After birth, signs in infants and children are: flank pain (pain in the upper abdomen or back, mostly with fluid intake) UPJ obstruction may also cause pain without an infection. Some cases of UPJ obstruction are not clear. Urine may drain normally at times, and at other times be blocked. This causes pain that comes and goes.