Review Question - QID 106075

A 65-year-old man presents to his primary care physician with left hip pain, stiffness, and hearing loss. The patient has a past medical history of diabetes and obesity. He played professional football when he was younger and is currently retired. The patient lives at home alone and admits to having lost some weight recently. His temperature is 99.5°F (37.5°C), blood pressure is 167/98 mmHg, pulse is 90/min, respirations are 17/min, and oxygen saturation is 98% on room air. A CT scan of the head is shown in Figure A, completed as a part of the workup for migraine at a recent emergency department visit. Physical exam reveals bilateral hearing loss but is otherwise unremarkable. Which of the following is the most likely diagnosis?