Pheochromocytoma

Terminology

Pheochromocytoma

Neuroendocrine tumors arising from chromaffin cells of the adrenal medulla (usually, "pheochromocytoma" refers specifically to adrenal tumors).

Paraganglioma

Same idea, paraganglia NET, but not adrenal (chromaffin staining usually less robust).

PPGL

Catch-all term ("pheochromocytoma and paraganglioma") Different papers use different acronyms for the same thing.