May Be Caused by

Endometriosis

Eosinophilic ureteritis

Hamartoma

Hemangioma

Hematoma

Lipoma

Lymphadenopathy

Malacoplakia

Papilloma

Polyp

Postoperative state

Renal vein thrombosis

Schistosomiasis haematobium

Spindle cell tumor

Transitional cell carcinoma

Tuberculosis

Ureteral metastasis

Ureteritis cystica

Varicosities