Anatomy 7 years old child presents with a lesion in upper tibia. X ray shows radioluscent area with Codmans triangle and Sunray appearance. Diagnosis is A Ewing sarcoma B Osteosarcoma C Osteoid Osteoma D Chondrosarcoma 💡 Explanation 7 years old child presents with a lesion in upper tibia. X ray shows radioluscent area with Codmans triangle and Sunray appearance. Diagnosis is ✓ Correct Answer: B. Osteosarcoma