What’s Blocking the Flow?

Analyze an intravenous urogram showing right-sided caliectasis, a dilated ureter, and a filling defect. What causes these classic urological findings?

Right ureterovesical calculus


This radiograph was taken 12 minutes after infusion of intravenous contrast. What diagnosis is suggested?

What is the most likely diagnosis?

Left renal artery stenosis
Right staghorn calculus
Left hypernephroma
Bladder carcinoma
Right ureterovesical calculus

Hydroureteronephrosis, Intravenous Urogram, Right ureterovesical calculus, Uretero-Vesical Junction, Urolithiasis

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