An intrarenal foreign body.
D002648:Child; D005260:Female; D005547:Foreign Bodies / Q000000981:diagnostic imaging / Q000209:etiology / Q000601:surgery; D006801:Humans; D007668:Kidney; D008418:Masturbation; D009392:Nephrectomy; D014513:Ureter / Q000502:physiology; D001743:Urinary Bladder; D014567:Urography