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There is a curvilinear calcification seen just adjacent to the medial femoral condyle, and parallelling the femoral cortex, representative of an avulsion injury of the medial femoral collateral ligament.
There is also reduction in the medial tibiofemoral joint space, spiking of the tibial eminences and periarticular osteophytosis, in keeping with advanced osteoarthritis of the joint. An intra-articular loose body is also seen.
The patellofemoral joint also shows evidence of similar degenerative changes, and atherosclerotic calcification of the popliteal artery is also noted.