- chromaffin paraganglioma
- chromaffin tumour
- paraganglioma, medullary
- A tumor of the adrenal gland that causes it to produce too much adrenaline. Pheochromocytomas are usually benign (noncancerous), but can cause dangerously high blood pressure and other symptoms, including pounding headaches, heart palpitations, flushing of the face, nausea, and vomiting.
National Cancer Institute
See also Understanding Medical Terminology.