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portal vein

   Also found in: Dictionary/thesaurus, Medical, Legal, Financial, Wikipedia 0.01 sec.
portal vein [′pȯrd·əl ‚vān]
(anatomy)
Any vein that terminates in a network of capillaries.


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Pressure in the portal vein increases (portal hypertension), the spleen becomes enlarged, and blood is shunted around the liver through enlarged, fragile veins (varices) in the stomach and esophagus.
Urgent relaparotomy revealed an ischemic liver on the right, a transected common bile duct at the level of its confluence, a divided and ligated right hepatic artery and thrombosed portal vein down to its confluence.
 
 
 
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