Orthopaedics – MCQ 23 – Bone tumour with neural differentiation in a 15 year old boy

A 15 year old boy is injured while playing cricket. X-rays of the leg rule out of a possible fracture. The radiologist reports the boy has an evidence of aggressive bone tumor with both bone destruction and soft tissue mass. The bone biopsy reveals a bone cancer with neural differentiation. Which of the following is the most likely diagnosis?
a) Chondroblastoma
b) Ewing‘s sarcoma
c) Neuroblastoma
d) Osteosarcoma

Correct answer : b) Ewing‘s sarcoma

Ewings sarcoma has a neural differentiation. Neuroblastoma may present with skeletal metastasis, but is seen in children less than 5 years old.

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