List seven causes of medially displaced ureters.

1. Retroperitoneal fibrosis (acute angle in mid to upper ureter)
2. Pelvic lipomatosis
3. Parailiac adenopathy
4. Retrocaval ureter (right side only)
5. Abdominoperineal resection (postoperative hockey sticking of lower ureters)
6. Urinoma or lymphocele
7. Horseshoe kidney or cross-fused renal ectopia
9. Tubo-ovarian abscess
10. Gastrointestinal inflammatory disease
11. Iliac artery aneurysm