Reason: eval for medial meniscus tear History: mjl pain, + mcmurray MENISCI: There is linear increased signal abnormality which extends to the tibial articular surface consistent with a complex tear of the posterior horn including a large oblique component as well as a smaller longitudinal component. The anterior horn appears intact. The lateral meniscus appears intact.ARTICULAR CARTILAGE AND BONE: There is partial thickness articular cartilage degeneration along the medial femoral condyle above the posterior horn of the meniscus. There is a focal full-thickness articular cartilage defect along the weightbearing surface of the medial femoral condyle as seen on image 11 of series 8. There is decreased curvilinear signal abnormality within the medial aspect of the weightbearing surface of the medial femoral condyle which is surrounded by bone marrow signal abnormality which may represent a insufficiency fracture/subchondral fracture (image 10; series 8). There are small tricompartmental osteophytes.There is a full-thickness articular cartilage defect along the median eminence of the patella with delamination that extends along the medial and lateral facet of the patella. There is underlying subchondral signal abnormality within the patella.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Tearing of the medial meniscus as described above.2. Bone contusion and probable subchondral fracture/insufficiency fracture of the medial femoral condyle.3. Osteoarthritis of the knee with a full-thickness articular cartilage defect and articular cartilage delamination affecting the patellofemoral and medial compartments.4. Large joint effusion.