Pheochromocytoma is the disease of:
b. Adrenal medulla(Ref: Nelson's 20/e p 2227-2729, Ghai 8/e p 525)Pheochromocytoma is a neoplasms of chromaffin cells in medulla that release catecholamines.
Pituitary gland
Adrenal medulla
Pancreas
Adrenal cortex
Endocrinology