Causes of Ureteral Deviation or Displacement

Medial Displacement or Deviation

Upper ureter

Lower ureter

Retrocaval ureter

Lymphadenopathy

Retroperitoneal fibrosis

Iliac artery aneurysm

Bladder diverticulum

Post-surgical (esp. AP resection)

Pelvic lipomatosis

Lateral Displacement or Deviation

Upper ureter

Lower ureter

Lymphadenopathy

Pelvic mass, e.g. uterine fibroids

Aortic aneurysm

Retroperitoneal hematoma