Orthopaedics A 10-year old boy presented with a mid tibial swelling. On X-ray, lytic lesion with sclerotic margins was seen. What is the most likely diagnosis? A Osteoid osteoma B Fibrous cortical defect C Osteosarcoma D Fibrous dysplasia 💡 Explanation A 10-year old boy presented with a mid tibial swelling. On X-ray, lytic lesion with sclerotic margins was seen. What is the most likely diagnosis? ✓ Correct Answer: A. Osteoid osteoma