No. Portal Hypertension is specific hypertension in the portal system while general hypertension is the primary hypertension. Portal hypertension happens when there is high pressure in the portal circulation or the circulation in the Liver and lower body organs.

i think

portal hypertension is a cause of spleenomegaly because in portal hypertension portal blood flow toward the spleen that may lead to over burden over the spleen

Portal hypertension is high blood pressure in the portal vein. The portal vein is a blood vessel that takes blood from the spleen to the liver. Therefore these are the parts of the body portal hypertension would affect.

There is nothing as portal cirrhosis. There is a condition called as portal hypertension. In cirrhosis of liver you have signs of portal hypertension as well as of liver failure present in a given patient.

distal splenal renal shunt