Paroxysmal Hypertension
Type: Symptom
Definition
Sudden, severe, and episodic spikes in blood pressure.
Clinical Details
When the tumor releases a massive surge of catecholamines, the hormones bind to alpha-adrenergic receptors on the blood vessels, causing intense, systemic vasoconstriction. This suddenly forces blood pressure to dangerous levels, often exceeding 200/120 mmHg. These hypertensive crises can trigger strokes or heart attacks if not immediately managed.