Q. A 60-year-old woman presents to her primary care physician with a six-month history of bone pain and fatigue. She reports that she has been feeling more tired than usual and has been experiencing pain a dull, boring pain, deep in her limbs, in her "bones". She also reports a history of hyperparathyroidism, which was diagnosed five years ago. The patient's vital signs on presentation are: blood pressure 140/90 mm Hg, pulse rate 80 beats/minute, and respiratory rate 16 breaths/minute. Physical examination reveals a patient with bone tenderness and muscle weakness. Serologies reveal elevated levels of parathyroid hormone and calcium. Imaging demonstrates hemosiderin deposits. What is the most likely diagnosis?