<prompt> Following are the signs of urinary tract obstruction in a CT Scan:Dilated ureterPerinephric fat strandingThickening of Lateroconal fasciaAll the above  <response>: Ans. d All the aboveRef Internet SourcesFeatures of CT Scan abdomen in Obstruction of Urinary system: Ureter dilatation Hydroureter Hydronephrosis Perinephric stranding Periureteral Edema Unilateral Renal Angiogram 