46-year-old female with lateral left knee pain. Evaluate for lateral meniscus tear versus chondral injury. MENISCI: The medial and lateral meniscus appear intact.ARTICULAR CARTILAGE AND BONE: There is full-thickness articular cartilage degeneration along the lateral facet of the patella with underlying subchondral signal abnormality. There is also focal full-thickness articular cartilage degeneration along the medial facet of the patella with underlying subchondral signal abnormality. There is near full-thickness to full-thickness articular cartilage degeneration along the lateral facet of the femoral trochlea and partial-thickness articular cartilage degeneration along the medial facet of the femoral trochlea. There is tricompartmental osteophyte formation. Heterogeneous bone marrow signal abnormality may reflect residual islands of red marrow.LIGAMENTS: The cruciate and collateral ligaments appear intact. There is a small amount of fluid within the medial collateral ligament bursa which may reflect a mild bursitis. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Degenerative changes most pronounced along the patellofemoral compartment. These findings can be seen in CPPD arthropathy.2. The medial and lateral meniscus appear intact.3. Tendinosis/interstitial tearing of the semimembranosus tendon as described above.