title: Case no. 4. Chronic left flank pain. Ureteral fibroepithelial polyp causing gross hydronephrosis and hydroureter.
authors.affiliation: Singapore General Hospital, Singapore.
authors.forename: K L
authors.initials: KL
authors.lastname: Toh
authors.forename: W S
authors.initials: WS
authors.lastname: Cheng
mesh_terms: D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000209:etiology*; D008875:Middle Aged; D011127:Polyps / Q000150:complications*; D014516:Ureteral Neoplasms / Q000150:complications*