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Gallbladder visualisation after intravenous urography
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Description
A 42-year-old man presented to the Emergency Department with a sudden onset of right renal colic. Physical examination showed knocking tenderness on the right-sided costovertebral angle. Laboratory evaluation was unremarkable except haematuria on urinalysis. Abdominal radiography of the kidneys, ureters, and bladder (KUB) was negative. Intravenous urography, using 50 ml of 76% amidotrizoate as a bolus, demonstrated right-sided obstructive uropathy (figure 1). Immediate ureteroscopy revealed a calculus …