Vessels of the Gut: Portosystemic anastomosis Flashcards

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1
Q

Portosystemic anastomosis at lower end of eosophagus & its clinical point

A
  • tributaries Left gastric vein (portal)
  • tributaries Azygous Vein (systemic)

during portal hypertension, opening of these anastomosis leads to eosophageal varices, which rupture causing haematemesis & melena

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2
Q

Portosystemic anastomosis at lower end Rectum/ upper end anal canal & its clinical point

A
  • Superior rectal vein (portal)
  • Middle & inferior rectal vein (systemic)

portal hypertension may cause piles & bleeding per rectum

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3
Q

Portosystemic anastomosis around umbilicus & its clinical point

A
  • Paraumbilical Veins (portal)
  • Sup. & inf. epigastric Veins (systemic)

Portal hypertension leads to dilations of these anastomosis called Caput Medusae

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