What radiographic pattern do osteosarcomas typically present as?

Osteosarcomas typically present with a sunburst pattern on radiographs. This pattern is characterized by radiating lines of ossification extending outwards from the tumor, creating a star-like, radiopaque appearance on X-rays. This distinctive pattern results from the tumor's aggressive nature, as it stimulates the formation of new bone and causes periosteal reaction.

The sunburst appearance is significant in aiding the diagnosis of osteosarcoma, highlighting the aggressive behavior of this malignancy and its tendency to invade surrounding tissues. Understanding this radiographic feature is crucial for clinicians when interpreting imaging studies and deciding on appropriate management strategies for patients suspected of having osteosarcoma.