MSFinals-3980

An 85-year-old patient visits his General Practitioner (GP) complaining of increasing pain in his left upper leg over the past 4 months. After conducting a thorough examination and taking a detailed medical history, the GP decides to order a set of blood tests and an X-ray of the left femur. Upon reviewing the results, the GP notices that the X-ray report indicates an area of cotton-wool calcification. What condition is cotton-wool calcification on an X-ray typically linked to?