Pheochromocytoma presenting with Prinzmetal's angina

Area of Science:

• Cardiology
• Endocrinology
• Oncology

Background:

• Pheochromocytoma is a rare tumor of the adrenal medulla.
• Hypertension is a common symptom of pheochromocytoma.
• Beta blockers are sometimes used to manage hypertension in pheochromocytoma.

Observation:

• A patient with pheochromocytoma developed severe hypertension and coronary artery spasm.
• These symptoms emerged shortly after initiating beta blockade therapy.

Findings:

• The patient's presentation suggests a link between beta blockade and coronary artery spasm.
• Unopposed alpha receptor stimulation is postulated as the mechanism.

Implications:

• Clinicians should be aware of the potential for coronary artery spasm when using beta blockers in pheochromocytoma patients.
• Careful medication management is crucial for preventing adverse events in these individuals.