portacaval anastomoses (portal-systemic anastomoses)

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Introduction

Naturally occurring venus communications between tributaries of the portal venous sytem & tributaries of the systemic venous sytem. The major portal systemic anastomosis include:

* may provide collateral circulation during portal obstruction or hypertension, although they may become varicose

Surgically created communications between the portal vein & the inferior vena cava or their tributaries.

Indications

to relieve portal hypertension

More general terms

Additional terms

References

  1. Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999.
  2. Clinically Oriented Anatomy, 4th edition, KL Moore & AF Dalley (eds), Lippincott Williams & Wilkins, Philadelphia, PA 1999.