What are the radiologic findings of primary bone tumor in plain films?
• Plain radiographs • Chondrosarcoma is a fusiform, lucent defect with scalloping of the inner cortex and periosteal reaction. • Extension into the soft tissue may be present as well as punctate or stippled calcification of the cartilage matrix. • CT • is helpful in defining the integrity of the cortex and distribution of calcification. • MRI • is invaluable in surgical planning as it demonstrates the intraosseus and soft tissue involvement of the tumor. • MRI is also helpful in evaluating possible malignant degeneration of osteochondromas by allowing accurate measurements of the cartilage cap. What are the useful imaging modalities to investigate primary bone tumors? Indicate when you would select each procedure. • Although plain radiographs can often predict the probable histology of a potentially malignant bone lesion, the definition of tumor size and local intraosseous and extraosseous extent is most accurately achieved by magnetic resonance imaging (MRI). • The entire involved bon
