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Vicarious contrast material excretion

Vicarious contrast material excretion (VCME) defines excretion of water-soluble contrast material in a way other than via normal renal secretion. 

The most common vicarious excretion of water-soluble contrast material is via the liver, opacifying the gallbladder. It can also occur via the small bowel 3.

Although commonly associated with unilateral renal pathology, vicarious excretion of contrast may be a normal variant in some individuals and does not in itself indicate renal or hepatobiliary pathology 1.


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