29 year-old female with right lower quadrant pain. Evaluate for appendicitis versus kidney stone. This examination is limited by the absence of oral and intravenous contrast.ABDOMEN:LUNG BASES: No significant abnormality notedLIVER, BILIARY TRACT: Cholelithiasis without evidence of cholecystitis.SPLEEN: No significant abnormality notedPANCREAS: No significant abnormality notedADRENAL GLANDS: No significant abnormality notedKIDNEYS, URETERS: There is a very large right parapelvic cyst vs. dilated extra-renal pelvis which measures 5.6 x 7.4 cm in axial image 61/160 of series 4. In a right lower pole calix there is a 1 cm diameter calcification. No definite hydroureter. The right upper pole renal collecting system is moderately dilated compatible with mild hydronephrosis. To further evaluate the renal collecting system, a dedicated renal CT or MRI examination may be helpful, if clinically indicated.RETROPERITONEUM, LYMPH NODES: No significant abnormality noted.BOWEL, MESENTERY: No significant abnormality noted. A normal appendix is present in the right lower quadrant.BONES, SOFT TISSUES: No significant abnormality notedOTHER: No significant abnormality notedPELVIS:UTERUS, ADNEXA: No significant abnormality notedBLADDER: No significant abnormality notedLYMPH NODES: No significant abnormality notedBOWEL, MESENTERY: No significant abnormality notedBONES, SOFT TISSUES: No significant abnormality notedOTHER: No significant abnormality noted
1 cm nonobstructing right lower pole renal calculus. Large right parapelvic cyst, and less likely dilated extrarenal pelvis with associated mild right upper pole hydronephrosis. Findings may be further evaluated with a dedicated renal CT or MRI examination, if indicated. Normal appendix. Cholelithiasis.