Orthopaedics Babu a 19-year-old male has a small circumscribed sclerotic swelling over diaphysis of femur; likely diagnosis is: A Osteoclastoma B Osteosarcoma C Ewing's sarcoma D Osteoid osteoma 💡 Explanation Babu a 19-year-old male has a small circumscribed sclerotic swelling over diaphysis of femur; likely diagnosis is: ✓ Correct Answer: D. Osteoid osteoma