Onion skin appearance is seen in_______________?
Correct answer: A. Ewing's sarcoma
- A. Ewing's sarcoma
- B. Osteosarcoma
- C. Osteoma
- D. Fibro sarcoma
Explanation
Ewing sarcoma classically causes an onion-skin periosteal reaction due to repeated layers of reactive new bone formation. Osteosarcoma more typically shows a sunburst pattern or Codman triangle.
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