Orthopaedics – MCQ 3 – 7 year old child with a lesion in upper tibia

7 year old child presents with a lesion in upper tibia. X-ray shows radiolucent area with Codman’s triangle and Sunray appearance. Diagnosis is :
a) Ewing’s sarcoma
b) Osteosarcoma
c) Osteoid osteoma
d) Chondrosarcoma

Correct answer : b) Osteosarcoma