They can be brought on when you are under stress or when you change positions.
How is pheochromocytoma diagnosed? If you are being evaluated for a possible pheochromocytoma, you may feel anxious while you await results.
The 2004 World Health Organization classification of endocrine tumors defines pheochromocytoma as a tumor arising from catecholamine-producing chromaffin cells in the adrenal medulla — an intra-adrenal paraganglioma.
Octreotide Somatostatin scans Over 70% of tumors express somatostatin receptors.