Images in clinical medicine. Paget's disease of the mandible.

A 55-year-old man presented with a 2-year history of painful jaw enlargement and progressively ill-fitting dentures. He had no headaches or visual-field defects and did not have hyperhidrosis, oily skin, glucose intolerance, heart failure, or an increase in glove or shoe size. The entire mandible was enlarged bilaterally to the angle of the jaw (Panels A and B), with marked misalignment of the upper and lower teeth. The serum level of insulin-like growth factor I was normal at 15.2 nmol per liter (normal range, 9 to 40), but levels of serum alkaline phosphatase and bone-specific alkaline phosphatase were elevated (154 . . .