How common are pheochromocytoma and paraganglioma?
Pheochromocytomas are diagnosed in 1 to 6 per million people per year. There are approximately 500 to 1,100 cases per year in the United States. The condition occurs most commonly at age 30-50 and is found in about 0.1%-0.5% of patients with high blood pressure. Paragangliomas occur in approximately 15%-20% of individuals diagnosed with pheochromocytoma.