phaeochromocytoma vs pheochromocytoma

phaeochromocytoma and pheochromocytoma both are nouns.

Word	Noun	Adjective	Verb	Adverb
phaeochromocytoma	Yes	No	No	No
pheochromocytoma	Yes	No	No	No

As nouns, phaeochromocytoma and pheochromocytoma are synonyms defined as:

phaeochromocytoma and pheochromocytoma: a vascular tumor of the adrenal gland; hypersecretion of epinephrine results in intermittent or sustained hypertension

phaeochromocytoma (noun)	pheochromocytoma (noun)
a vascular tumor of the adrenal gland; hypersecretion of epinephrine results in intermittent or sustained hypertension	a vascular tumor of the adrenal gland; hypersecretion of epinephrine results in intermittent or sustained hypertension