<prompt> Answer this question truthfullyWhat is the classification of hypertension related to portal inflammation?  <response>: <reason> Based on the etiology, portal hypertension may be classified as pre- hepatic, intra- hepatic, and post- hepatic. Intra- hepatic portal hypertension classified into pre- sinusoidal, sinusoidal, and post- sinusoidal disorders. Based on the functional impairment in the liver, portal hypertension may be classified as cirrhotic and non- cirrhotic. Group Wedged hepatic venous pressure WHVP Free hepatic vein pressure FHVP Hepatic vein pressure gradient HVPG Cause Pre- hepatic portal hypertension Normal Normal Normal Increase in portal veins resistance Inflammatory portal vein closure due to thrombosis Intra- hepatic portal hypertension Pre-sinusoidal disorders Normal Normal Normal Portal vein thrombosis Schistosomiasis Primary biliary cirrhosis Sinusoidal disorders Elevated Elevated Elevated Cirrhosis Post-sinusoidal disorders Elevated Normal Elevated Right heart failure Inferior vena cava IVC obstruction Post- hepatic portal hypertension Elevated Elevated Normal Increased post- hepatic vessels resistanceIdiopathic portal hypertension IPH is due to obstruction and stenosis of intra- hepatic portal vasculature. Idiopathic portal hypertension IPH has 4 stages: Stage I: Non- atrophic liver without subcapsular parenchymal atrophy. Stage II: Non- atrophic liver with subcapsular parenchymal atrophy. Stage III: Atrophic liver with subcapsular parenchymal atrophy. Stage IV: Portal venous occlusive thrombosis. 