All about portal vein: a pictorial display to anatomy, variants and
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6428891/
WebMar 21, 2019 · The portal vein (PV) is the main vessel of the portal venous system (PVS), which drains the blood from the gastrointestinal tract, gallbladder, pancreas, and spleen to the liver. There are several variants affecting the PV, and quite a number of congenital and acquired pathologies.
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