title: Nonopaque ureteral calculus.
mesh_terms: D004194:Disease; D006801:Humans; D011859:Radiography; D014513:Ureter; D014514:Ureteral Calculi; D014515:Ureteral Diseases; D014545:Urinary Calculi / Q000000981:diagnostic imaging*
keywords: URETER/diseases; URINARY CALCULI/radiography