Abstract
The adrenal venous system demonstrated by the postmortem tissue microvenography varied with the length of clinical course of portal hypertension. Veins passing vertically through the cortex, e.g., the emissary and corticomedullary veins, increased remarkably in number without noticeable dilatation in chronic cases. The venous tree dilated and proliferated in the periadrenal tissue communicating with the capsular vein. In fulminant cases, the original emissary and corticomedullary veins dilated severely and irregularly without increase in number. Signs of the hepato-adrenal collateral circulation were severer in the right gland than in the left.