MS-2767

Mrs. Smith, a 67-year-old woman, presents to the emergency department with a humerus bone fracture. Her husband reports that she sustained the injury from a minor fall. Upon examination, an X-ray reveals a deficiency in the bone at the fracture site and a cavitating lung lesion in the right middle zone. All of her blood tests are normal except for elevated levels of calcium and ALP. What is the probable diagnosis?