Pheochromocytoma other diagnostic studies

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Ahmad Al Maradni, M.D. [2]

Overview

Clonidine suppression test may be used in the diagnosis of pheochromocytoma.

Other Diagnostic Studies

• Clonidine suppression test may be used to diagnose pheochromocytoma.
• Clonidine is a centrally-acting alpha-2 agonist used to treat high blood pressur.
• Clonidine mimics catecholamines in the brain and reduce the activity of the sympathetic nerves controlling the adrenal medulla.
• Healthy adrenal medulla will respond to the Clonidine suppression test by reducing catecholamine production.
• Lack of a response is evidence of pheochromocytoma.