esophageal veins to left gastric branch of portal system.
Anastomoses: Anorectal region (hemorrhoids)
middle and inferior rectal veins to the superior rectal branch of the portal system.
Anastomoses: Paraumbilical region –
systemic small cutaneous veins around umbilicus with paraumbilical veins of the falciform ligament that drain to the portal vein.
Anastomoses: Retroperitoneal region –
veins from the portal system on the posterior aspects of secondarily retroperitoneal viscera or the liver anastomose with systemic retroperitoneal veins of the posterior abdominal wall or diaphragm