title: Non-opaque calculus demonstrated by computerized tomography.
abstract: Computerized tomography demonstrated that a non-opaque filling defect within the ureter of a ureterostomy patient was a struvite calculus containing a minimal amount of calcium salts.
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D006801:Humans; D008297:Male; D014057:Tomography, X-Ray Computed; D014513:Ureter / Q000601:surgery; D014514:Ureteral Calculi / Q000000981:diagnostic imaging*; D014547:Urinary Diversion