An eight years old boy presents with progressive swelling around the knee joint of two months duration following mild trauma . Local examination reveals an irregular bony swelling over the upper end of tibia, with raised local temperature and of variable consistency and defined margins. The most likely diagnosis is –
Correct Answer: Osteogenic sarcoma
Description: The clinical presentation in question can occur both in Ewing's sarcoma and osteosarcoma.
History of trivial trauma
Progressive swelling
Raised local temperature
Variable consistency
ill defined margins.
However, swelling is around the knee joint at upper end of tibia, which favours the diagnosis of osteosarcoma (metaphyseal lesion).
Ewing's sarcoma usually occurs in the diaphysis of the bone (middle of the shaft).
Category:
Orthopaedics
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