Ureteropelvic Junction (UPJ) Obstruction скачать в хорошем качестве

Ureteropelvic Junction (UPJ) Obstruction

🔹️Pediatric Sonography🔹️ 🔸️ARDMS Review🔸️ ✅Ureteropelvic junction (UPJ) Obstruction Pelviureteric junction (PUJ) obstruction/stenosis, also known as ureteropelvic junction (UPJ) obstruction/stenosis, can be one of the causes of obstructive uropathy. It can be congenital or acquired with a congenital PUJ obstruction being one of the commonest causes of antenatal hydronephrosis. PUJ obstruction is most commonly unilateral but is reported to be bilateral in ~30% (range 10-49%) of cases 10. There is a recognized predilection towards the left side (~67% of cases). During embryogenesis, the pelviureteric junction forms usually around the fifth week and the initial tubular lumen of the ureteric bud become recanalized by ~10-12 weeks. The PUJ area is the last to recanalize. Inadequate canalization is thought to be the main embryological explanation of a PUJ obstruction. Extrinsic obstructions secondary to bands, kinks, and aberrant vessels also are commonly encountered. Ultrasound findings: Will often show a dilated renal pelvis with a collapsed proximal ureter. Doppler sonography: the obstructed kidneys may show higher resistive indices. Associations: In congenital cases, some renal tract abnormalities are recognized. Renal duplication Multicystic dysplastic kidneys Horseshoe kidney or cross fused ectopia https://ultrasoundboardreview.com/pas... #pediatric #pediatricsonography #pedsonography #ardms #Sonography #Ultrasound