Findings are masked on CECT
CECT: mild calyceal dilatation and constriction of lumen of renal pelvis
NCCT: high-attenuation thickening of pelviureteric wall caused by hemorrhage
Bleeding may be parenchymal, subcapsular, perinephric, subepithelial (rare)
Subepithelial renal sinus hemorrhage is NC seen in coagulopathic patients
