A 7-year-old boy with h/o trauma 2 months back now presents with fever and acute pain over thigh. On X-ray femoral shaft shows lesions with multiple laminated periosteal reaction next line of management:
(d) MRI- Information in this question are: 1st Decade, diaphyseal lesion with onion peel reaction goes towards Ewing's sarcoma. Next best investigation is MRI for soft tissue involvement, marrow involvement and micrometastasis. Overall the best investigation is Biopsy to confirm the diagnosis but MRI is done before the biopsy, to localize the best site for biopsy.
CRP measurement
Core biopsy
Tc99 MDP scan
MRI
Miscellaneous