#high_blood_pressure__hypertension  a common disorder in which blood pressure remains abnormally high (a reading of 140/90 mm Hg or greater)
  exclusion:  hypotension
  supertype:  cardiovascular_disease  a disease of the heart or blood vessels
  subtype:  essential_hypertension__essentialhypertension__hyperpiesis  persistent and pathological high blood pressure for which no specific cause can be found
  subtype:  malignant_hypertension__malignanthypertension  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; "malignant hypertension is the most lethal form of hypertension"
     subtype:  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
  subtype:  secondary_hypertension__secondaryhypertension  hypertension that is secondary to another disease
  subtype:  white-coat_hypertension  temporary rise in blood pressure in the doctor's office

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