72 year-old female, twisted knee with pain MENISCI: There is extensive degeneration and loss of substance/degenerative tearing of the anterior horn, body, and posterior horn of the lateral meniscus. There is intrasubstance signal within the medial meniscus likely representing mucoid degeneration without extension to an articular surface.ARTICULAR CARTILAGE AND BONE: There is diffuse near full-thickness cartilage loss involving the patellofemoral joint and bilateral tibiofemoral joint compartments. There is minimal subchondral signal abnormality along the lateral femoral condyle and the median eminence of the patella. A small bone island is noted in the distal femur. The bone marrow signal is otherwise within normal limits.LIGAMENTS: The cruciate and collateral ligaments are intact.EXTENSOR MECHANISM: The quadriceps and patellar tendons are intact. There is pre-patellar edema.ADDITIONAL
1. Extensive degeneration and degenerative tearing of the lateral meniscus, as described above.2. Tricompartmental articular cartilage loss, as detailed above. 3. Moderate joint effusion.4. Baker's cyst.