1 MCQs in Orthopedics for NEET PG
A 45-year-old man with a 10-year history of recurrent drainage from an old tibial fracture site presents with purulent discharge from a sinus tract. Plain radiographs show a dense, sclerotic bone fragment surrounded by a shell of new bone with a central opening. The structure marked **A** in the diagram represents the dense necrotic bone fragment. Which of the following best explains why this structure appears radiographically denser (whiter) than the surrounding bone?
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