ACUTE renal failure in patients with multiple myeloma who have had intravenous urography has had increased emphasis over the last few years. 1–5 A direct cause- and-effect relation between the acute ...

Background A 56-year-old male with bilateral flank pain was admitted following diagnosis of bilateral kidney stone disease. He had previously undergone four separate pyelolithotomy sessions (two per ...

The differential diagnosis for a radiolucent filling defect within the urinary system includes tumor, radiolucent stone, infectious debris, fungus, and blood clot. Dahnert gives the differential ...

Computed tomography (CT) can be performed rapidly and can detect radiolucent stones, except for drug-induced stones. It is preferred over intravenous pyelography or urography because it is more ...

Retrograde pyelography is a procedure commonly used by urologists involving X-ray imaging to visualize the kidneys, bladder and ureters. It involves the insertion of a cystoscope into the urinary ...