Presentation
Right side flank pain, nausea, and hematuria for three days.
Patient Data
Age: 30 years
Gender: Female
From the case:
Ureterolithiasis
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Axial non-contrast

A calculus with coronal height up to 6 mm in the right side ureter distal segment adjacent to UVJ with upstream hydroureteronephrosis is seen. Left side curve spine scoliosis is seen.
Case Discussion
The case illustrates the non-contrast MDCT feature of distal ureteric calculus with upstream hydroureteronephrosis. Calculus is a major cause of urinary tract obstruction that can be complicated with urinary tract infection and/or chronic renal disease.