[Typical from and basic variants of the structure of the intrahepatic portion of the portal vein].

The structure of the portal vein was studied in 210 preparations of the liver. The structure of the main trunk of the portal vein and its lobe branches was estimated orienting by the typical shape and the main variations of the structure. Two variants of the structure of the right and left portal veins (after the type of a "pine branch" and the variant of the "minimum length" of the lobe vein) were common for both veins. The structure of the "snail" type was found only in the left portal vein of the "whisk" type -- only in the right one. The sources of the segment blood supply changed depending on the structure of the main trunk and lobe veins. They can be supplied by terminal or lateral branches of the lobe veins, vascular branches of the main trunk of the portal vein and of the vessels of neighbouring segments. Estimation of the angioarchitectonics of the liver operated on should be approached individually in each case. It is expedient to take into account the above typical shape and the main variants of the intrahepatic portion of the portal vein.