75-year-old female with knee pain. MENISCI: There is linear signal abnormality within the posterior horn and body of the medial meniscus extending to the tibial articular surface compatible with a horizontal tear. This is associated with small parameniscal cysts along the posteromedial aspect of the meniscus. The anterior horn appears intact. The lateral meniscus appears intact.ARTICULAR CARTILAGE AND BONE: There is full-thickness loss of articular cartilage along the medial facet of the patella with small underlying subchondral cyst formation. There is also diffuse thinning of the articular cartilage of the lateral facet of the patella with a focal full-thickness defect, which is associated with edema-type signal in the underlying bone. There is full-thickness cartilage loss along the medial facet of the femoral trochlea with mild degenerative signal abnormality in the underlying bone. There is focal near full-thickness degeneration of the articular cartilage of the weightbearing portion of the medial femoral condyle. There is relative sparing of the articular cartilage of the lateral tibiofemoral compartment.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Medial meniscus tear.2. Cartilage degeneration as described above.3. Small joint effusion.4. Mild edema/inflammation anterior to the patellar tendon is nonspecific.