The most important collateral pathway in the portal vein hypertention is() A) retroperitoneal collateral vesselsB) umbilical vein from the left portal vein to the epigastric venous systemC)...

The most important collateral pathway in the portal vein hypertention is() A) retroperitoneal collateral vessels B) umbilical vein from the left portal vein to the epigastric venous system C) Esophageal and gastric venous plexus D) the hemorrhoidal venous plexus E) none