As nouns,
portal hypertension is a hyponym of
malignant hypertension; that is,
portal hypertension is a
word with a more specific, narrower meaning than
malignant hypertension:
- malignant hypertension: severe hypertension that runs a rapid course and damages the inner linings of the blood vessels and the heart and spleen and kidneys and brain
- portal hypertension: increase in blood pressure in the veins of the portal system caused by obstruction in the liver (often associated with alcoholic cirrhosis), causing enlargement of the spleen and collateral veins