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American Journal of Roentgenology, Vol 144, Issue 3, 549-553
Copyright © 1985 by American Roentgen Ray Society

Articles

The recanalized umbilical vein in portal hypertension: a myth

M Lafortune, A Constantin, G Breton, AG Legare, and P Lavoie

The demonstration of a vessel in the falciform ligament, traditionally presumed to be a reopened umbilical vein, is an important sonographic sign of portal hypertension. This vessel was sought in 200 umbilicoportographies (all portal hypertensive) and in 41 autopsy-dissected falciform ligaments (34 normal and seven cirrhotic). The normal falciform ligament contained one to three tiny collapsed paraumbilical veins. In cirrhotics, the number and caliber of paraumbilical veins increased. A reopened umbilical vein was never found. The authors conclude that the umbilical vein does not recanalize in portal hypertension. The vessel involved is actually an enlarged paraumbilical vein.
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Copyright © 1985 by the American Roentgen Ray Society.