Pheochromocytoma is a tumor that grows on the adrenal glands, which are located on top of the kidneys. It is made up of special adrenal gland cells. The cells secrete hormones such as epinephrine and norepinephrine. These hormones help to regulate the heart rate and blood pressure. The cells may secrete excessive amounts of the hormones. This results in periods of:
Pheochromocytoma. National Organization of Rare Disorders website. Available at: https://rarediseases.org/rare-diseases/pheochromocytoma/. Published 2008. Accessed August 24, 2017.
Pheochromocytoma (adrenaline-producing adrenal tumor). The American Association of Endocrine Surgeons website. Available at: http://endocrinediseases.org/adrenal/pheochromocytoma.shtml. Accessed August 24, 2017.
Pheochromocytoma and Paraganglioma Treatment (PDQ®)–Patient Version. National Cancer Institute website. Available at: https://www.cancer.gov/types/pheochromocytoma/patient/pheochromocytoma-treatment-pdq. Updated August 18, 2017 Accessed August 24, 2017.
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