title: Renal pseudotumor on urography secondary to gallbladder empyema.
abstract: A case of gallbladder empyema is presented, which opacified initially on excretory urography and then on nephrotomography, mimicking a renal mass. Correct diagnosis was accomplished by angiography and ultrasound examination. With normal renal function gallbladder visualization on urography is indicative of a gallbladder abnormality.
mesh_terms: D000368:Aged; D002764:Cholecystitis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D002769:Cholelithiasis / Q000175:diagnosis; D003937:Diagnosis, Differential; D004653:Empyema / Q000175:diagnosis; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008297:Male; D014463:Ultrasonography; D014567:Urography