The bird's liver receives nearly all the blood from the stomach, gut, pancreas and spleen, as well as from the left liver itself, into the right hepatic lobe, by a right and left portal vein.
This involves placement of an expandable metallic stent between the branches of the portal vein and systemic circulation within the liver parenchyma.
I had a portal vein thrombosis approximately 9 years ago.
U/S [Fig 3] showed a partially occlusive thrombus in the superior mesenteric vein [SMV] extending into the portal vein.
Blood full of just digested nutrients from the intestine and the stomach enter the liver via the hepatic portal vein.