Chondrosarcoma .
- Malignant neoplasm of mesenchymal tissue producing undifferentiated cartilage
- Mean age of occurrence is in the 3rd and 4th decade.
- Most common location: anterior maxilla, symphysis, coronoid process and condyle.
- Signs and symptoms: Pain, swelling, tooth mobility and displacement.
- Radiographic findings: Radiolucency with irregular borders with gradual deposition of sclerosing tissue. The amount of the deposition varies according to the tumor progression. In 25% of cases, sub periosteal bone deposits with the characteristic ‘sunray’ appearance, may be visualized.