A young male child presented with gradually increasing painful swelling around knee joint since last 2 months.
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Radiographs left knee joint including leg were taken in AP and lateral projections.
Radiographs showing sclerotic lesion involving dia-metaphyseal region of tibia with wide zone of transition, osteoid matrix , periosteal elevation (Codman,s Triangle) and characteristic " Sun burst " type of periosteal reaction.
No significant soft tissue involvement or intra-articular extension is appreciated.
The findings in a 9 Y/O patient compatible with malignant bone lesions such as osteogenic sarcoma.
Osteogenic sarcoma is usually seen in 2nd decade. Distal femoral metaphysis is most common site. Highly aggressive tumor with high fatality rates mostly due to pulmonary metastases.