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Definition
By Mayo Clinic staff
A pheochromocytoma (fe-o-kro-mo-si-TOE-muh) is a rare, usually noncancerous (benign) tumor that develops in the core of an adrenal gland. You have two adrenal glands, one just above each of your kidneys. Your adrenal glands produce hormones that give instructions to virtually every organ and tissue in your body.
If you have a pheochromocytoma, your adrenal glands can produce too much of certain hormones, raising your blood pressure and heart rate. A pheochromocytoma may be life-threatening if unrecognized or untreated.
A pheochromocytoma can develop at any age, but most commonly occurs in middle age. Usually, treatment for pheochromocytoma can return blood pressure to normal.
- Young WF, et al. Clinical presentation and diagnosis of pheochromocytoma. http://www.uptodate.com/home/index.html. Accessed Dec. 13, 2010.
- Young WF, et al. Treatment of pheochromocytoma in adults. http://www.uptodate.com/home/index.html. Accessed Dec. 13, 2010.
- Blake MA, et al. Adrenal imaging. American Journal of Roentgenology. 2010;194:1450.
- Mazzaglia PJ, et al. Laparoscopic adrenalectomy: Balancing the operative indications with the technical advances. Journal of Surgical Oncology. 2010;101:739.
- Patient education: Pheochromocytoma. National Institutes of Health. www.cc.nih.gov/ccc/patient_education/pepubs/pheo.pdf. Accessed Dec. 19, 2010.
- Pheochromocytoma. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merckmanuals.com/professional/sec12/ch153/ch153h.html. Accessed Dec. 19, 2010.
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