Portacaval anastomosis
Portacaval anastomosis |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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A portacaval anastomosis is a specific type of anastomosis that occurs between the veins of portal circulation and those of systemic circulation.
Specific types include:
Region | Name | portal circulation | systemic circulation |
Esophageal | esophageal varices | left gastric vein | esophageal veins |
Rectal | hemorrhoids | superior rectal vein | middle rectal veins and inferior rectal veins |
Paraumbilical | caput medusae | paraumbilical veins | inferior epigastric vein |
Retroperitoneal | (no clinical name) | right colic vein, middle colic vein, left colic vein | renal vein, suprarenal vein, and gonadal vein |
It can be one of the conditions caused by portal hypertension.