Background: A 55-year-old male with poorly controlled hypertension and a history of coronary artery disease presented with a large adrenal mass. The patient also reported a long-standing history of profuse sweating, tinnitus, vomiting and headaches.
Investigations: Physical examination, 24-hour urine metanephrine level, CT, MRI and bone scan.
Diagnosis: Pheochromocytoma of the left adrenal gland.
Management: Preoperative alpha-blockade therapy with phenoxybenzamine followed by open left adrenalectomy.