Pheochromocytomas are catecholamine-producing tumors situated in the adrenal medulla. In this month's Case Study, Kobal and colleagues describe an unusual presentation of pheochromocytoma: cyclic waves of hypertension alternating with hypotension. The patient was successfully treated with phentolamine, intravenous fluids and doxazosin, before eventually undergoing surgical removal of the tumor.
- Sergio L Kobal
- Esther Paran
- Jonathan Leor
