What you will see below is the schematic illustration of the pathogenesis of pulmonary arterial hypertension. There are many diseases associated with acute and chronic pulmonary hypertension as mentioned in Venice Classification (Collagen Vascular Diseases, Portal Hypertension, HIV Infection, Congenital Heart Disease, etc).
According to an article (you may download later), the major components in the pathogenesis of chronic pulmonary arterial hypertension are endothelial dysfunction and vasoconstriction, vascular remodeling and in situ thrombosis – as seen in the illustration above.
