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- FIGURE 50.4-2B. Dedifferentiated chondrosarcoma presents as
- predominantly lytic, destructive lesion in an older patient, mimicking
- a metastatic lesion. Internal fixation is often used inappropriately,
- as in this case. Biopsy is needed to exclude the presence of a primary
- tumor if the lesion is the first manifestation of bone involvement.
- Gross appearance of the resected bone after removing the screw.
- White-grey cartilage percolates across the fracture site and down the
- medullary femur.
-