Case contributed by Shervin Sharifkashani
Diagnosis certain


Left flank colicky pain and hematuria and episodes of vomiting.

Patient Data

Age: 20 years
Gender: Male

A calculus coronal height up to 7 mm in the left side ureter proximal segment with pronounced hydroureteronephrosis upstream is seen. A few scattered small calculi up to 2-3 mm in kidneys are also seen.

Case Discussion

The case illustrates non-contrast MDCT features of proximal segment ureterolithiasis with upstream hydroureteronephrosis. Calculi are the major cause of ureteric obstruction which in chronic and recurrent cases can lead to chronic renal disease.

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