Presentation
Mild right hydronephosis on ultrasound study.
Patient Data
There is a calculus projected over the right transverse process of L4. After contrast injection there is a cut-off at the level of the calculus that do not cause complete obstruction, but it causes a mild dilatation of upper ureter.
There is a calculus projected on the right transverse process of L4. After contrast injection there is a stop point at the calculus that do not promotes a complete obstruction, but it causes a mild dilatation of upper ureter.
Case Discussion
Intravenous urography is a fluoroscopy method that has been replaced by CT studies.
This case illustrates a lithiasis migrated to middle portion of the right ureter.