How to remember Portal vein anatomy?

Origin: Hepatic Portal Vein is formed by the union of Splenic vein and Superior mesenteric Vein behind the neck of pancreas at L1 vertebral level.

Termination: The portal vein terminates by branching into right branch (entering right lobe of liver) and left branch entering (left lobe of liver).

Tributaries:

1. Splenic vein
2. Superior mesenteric vein
3. Cystic vein
4. Paraumbilical vein
5. Right and Left gastric vein
6. Superior pancreaticoduodenal vein

Points to remember:

Tributaries of splenic vein:

• Veins corresponding to the branches of splenic artery
• Inferior mesenteric vein

Tributaries of inferior mesenteric vein:

• Veins corresponding to the branches of inferior mesenteric artery

Tributaries of superior mesenteric vein:

• Veins corresponding to the branches of superior mesenteric artery
• Inferior pancreaticoduodenal vein
• Right gastroepiploic vein

Sites of Portocaval Anastomoses

Site	Portal vein	Systemic vein
Abdominal esophagus	Esophageal tributaries of left gastric vein	Esophageal tributaries of acessory hemiazygos vein
Umbilicus	Paraumbilical vein	Superior and Inferior epigastric vein
Anal canal	Superior rectal vein	Middle and Inferior rectal vein
Bare area of liver	Hepatic venules	Phrenic and intercostal veins
Posterior abdominal wall	Twigs of colic vein	Retroperitoneal vein

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