Mild prominence on collection system on right with although no visualized ureteric calculus. these are my ct scan results. i have pain in my lower ab?

See below: Was the CT scan done with contrast or not?Were delayed films obtained? Hopefully you are seeing a urologist because further workup may be needed to diagnose your pain.If the CT scan was done with contrast and delayed films it may be a non-urological cause.Also you may have very mild UPJ obstruction(uretero-pelvic junction).Good luck.

Here are some ...: Mild prominent right collecting system as reported may mean 3 conditions: 1. a degree of normal variation without any clinical significance as long as being comfortable or 2. just after recent stone passage usually after a period of severe pain with a sudden relief of pain, or 3. the stone was small (