I have gone through CT KUB without contrast The below are findings Could you please guide Mild Pelvicalyceal fullness is noted on the right side without evidence of urolithiasis . This finding may be secondary to recent passage of stone Right Sided extrarenal pelvis is also seen The urinary bladders apperars normal without any intraluminal calculus or wall thickening Appendix is visualised separately & appear unremarkable The rest of the visualized abdominal viscera appear grossly unremarkable on this unenhanced examination