Crossing vessels causing uretero-pelvic junction obstruction

Case contributed by Tariq Walizai
Diagnosis almost certain

Presentation

Left flank pain.

Patient Data

Age: 20 years
Gender: Female
This study is a stack
Axial
non-contrast
This study is a stack
Axial C+ portal
venous phase
This study is a stack
Coronal C+ portal
venous phase
This study is a stack
Sagittal C+ portal
venous phase
This study is a stack
Axial C+
delayed
This study is a stack
Coronal C+
delayed
This study is a stack
Sagittal
C+ delayed
This study is a stack
3D
VRT
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Info

There is evidence that branches of the renal vein cross the pelviureteric junction before that to join in the renal pelvis which is best seen on sagittal view in this case and resulting in severe hydronephrosis and disproportionate dilatation of the renal pelvis.

No radiodense calculus or definite mass lesion is seen.

The right kidney and the rest of the imaged viscera are within normal limits.

Case Discussion

Current CT findings are more in favour of crossing vessels with resultant pelviureteric junction obstruction which is a common scenario as detailed.

Co-contributor Dr, Anwar-ul-Haq Zadran.

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