<prompt> A young girl presented with swelling of right thigh with history of trauma 2 months back. Now she presents with swelling at mid shaft of femur and low grade fever. ESR is midly raised. X ray shows a laminated Periosteal reaction, next line of investigation would beMRIBiopsyBone scanBlood count and CRP  <response>: Next best investigation is MRI Extent of soft tissue involvement Skip lesions in the same compament Relationship if neurovascular bundle to the tumor Intramedulary extent of tumor Refer Campbell 13the 