A rare isolated non-familial pheochromocytoma/paraganglioma tumor arising from neuroendocrine chromaffin cells of the adrenal medulla (pheochromocytoma) or from extra-adrenal chromaffin tissue (paraganglioma). The majority of these tumors are benign and the presenting symptoms are typically caused by the increased catecholamine production of the tumor including hypertension (often paroxysmal) tachycardia anxiety and/or excessive sweating.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version April 2026
Newly diagnosed with
Sporadic pheochromocytoma/secreting paraganglioma?
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Advocacy Organizations
Global Adrenal Testing Consortium
The Global Adrenal Testing Consortium is a patient-led nonprofit transforming adrenal health through open, collaborative research. We unite patients, clinicians, and researchers to redefine cortisol testing—prioritizing accuracy, accessibility, and community-driven innovation. By setting transparent standards, advocating for FDA approval, and ensuring global access, we empower the adrenal insuffic
Pheo Para Alliance
Our mission is to empower patients with pheochromocytoma or paraganglioma, their families and medical professionals through advocacy, education and a global community of support, while helping to advance research that accelerates treatments and cures.
The National Adrenal Diseases Foundation
The National Adrenal Diseases Foundation informs, educates, and supports those with adrenal disease and their families to improve their quality of life. Our goals are: To stop death from undiagnosed Addison’s disease. To improve life quality of those who suffer from adrenal disease. To promote the study of adrenal disease to improve treatment and find cures.
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Clinical Trials
For a list of clinical trials in this disease area, please click here.