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Hydronephrosis

MONDO:0005510

Collection of urine in the renal pelvis that results in dilatation of the renal pelvis and calyces. It is caused by obstruction of urine flow, nephrolithiasis, or vesicoureteral reflux. Signs and symptoms include flank pain, nausea, vomiting, fever, and dysuria.

8 clinical trials for this condition and its sub-types.

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Sub-types

Congenital hydronephrosis (3)

Broader categories

Disease (680) Kidney disorder (214) Urinary system disorder (66) Human disease (14) Urinary tract obstruction (11) Disease by body system or component (0)

Trials to join now! 3 Not yet recruiting 3 Not yet finished but already full! 1 Completed 1

Could a simple ultrasound replace radiation scans for kidney blockages?

Diagnosis Completed

This study tested whether a special ultrasound with a contrast dye (Definity) can detect kidney obstructions. Ten adults with a blocked kidney had ultrasound scans before and after surgery to relieve the blockage. The goal was to see if this method works as well as standard nucle…

Phase: PHASE2 • Sponsor: University of Michigan • Aim: Diagnosis

Last updated Jun 27, 2026 07:52 UTC