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Symmetrical significant joint spaces narrowing involves all three joint compartments of both knees, namely both medial and lateral tibiofemoral compartments as well as patellofemoral compartment. Lateral tibiofemoral compartments are more severely affected/narrowed.
Marginal bone erosions at the bilateral medial and lateral femoral condyles of both knees.
Minimal marginal osteophytes, subchondral sclerosis and cysts.