This large adrenal neoplasm has been sectioned in half. Note the grey-tan color of the tumor compared to the yellow cortex stretched around it and a small remnant of remaining adrenal at the lower right. This patient had episodic hypertension. This is a tumor arising in the adrenal medulla--a pheochromocytoma. The anesthesia record below gives an indication of the nature of this neoplasm. Note the sudden rise in blood pressure midway through the operation as the tumor was being manipulated during removal.

---

---