What is the meaning of Girasol? How popular is the baby name Girasol? Learn the origin and popularity plus how to pronounce Girasol
A pheochromocytoma is an adrenal gland tumor that secretes epinephrine and norepinephrine hormones. These hormones are responsible for regulating heart rate and blood pressure, among other functions. Pheochromocytomas occur most frequently in young to middle-aged adults between the ages of 30 and 60. Ten percent of individuals affected are children who usually develop symptoms between the ages of 6 and 14.
There is no mention of context, but if it's referring to a medical condition, perhaps what is meant is pheo, which is medical slang for pheochromocytoma, a benign tumor of the adrenal gland associated with severe high blood pressure. Wikipedia has an article on it.