Figure 1: Axial images of a CT scan of the abdomen and pelvis, showing a 4 mm calculus in the right distal ureter near the ureterovesical junction causing mild hydronephrosis. Full size image ...

Urolithiasis continues to be a frequent cause of presentation to hospital. ... Suspicion is usually confirmed with radiologic tests, particularly the non-contrast enhanced CT scan.

Urolithiasis is a term used to describe calculi or stones that form the urinary tract. ... (CT) scan to visualize urinary tract and any obstructions such as in acute renal colic.

CT is currently the most sensitive and specific imaging test for urolithiasis. The improved diagnostic accuracy of newer generation of CT scanners coupled with speed and patient friendliness is making ...

Urolithiasis in children occurs in 1-5%. Clinical Manifestations and Causes. Obstructive nephropathy may manifest in varying ways, ... CT scans, and contrast imaging.