title: Perforation of renal pelvis by internal ureteral stents.
mesh_terms: D006801:Humans; D007674:Kidney Diseases / Q000000981:diagnostic imaging / Q000209:etiology*; D007682:Kidney Pelvis / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D011859:Radiography; D014513:Ureter / Q000601:surgery; D014547:Urinary Diversion / Q000009:adverse effects*