Findings: The overall osseous alignment remains anatomic and the bone marrow signal intensity is preserved without evidence for bone bruise or fracture. At the proximal femoral attachment of the fibular collateral ligament, there is mild signal hyperintensity within the central fibers (image 13 series 3, image 12 series 5) which may represent minimal scarring from a prior low grade injury. The fibers remain taut without discrete disruption or laxity. The anterior cruciate ligament, posterior cruciate ligament, medial collateral ligament, popliteus tendon and popliteal fibular ligaments remain intact and normal in signal intensity. The biceps femoris, iliotibial tract, and semimembranosus insertion are normal in appearance. In the medial compartment, the medial meniscus remains intact without discrete meniscal tear or evidence for root injury. Mildly increased central signal hyperintensity, at the posterior horn root junction, which may represent a mildly prominent normal vascular pedicle, however could also represent a mild contusion in the setting of recent trauma. The medial articular surfaces are significant for small scattered areas of low grade superficial chondrosis at the weight-bearing tibial plateau and medial femoral condyle. No deep or delaminating chondral defect is identified. In the lateral compartment, the lateral meniscus remains intact without discrete meniscal tear or evidence for root injury. The lateral meniscofemoral ligament of Humphrey is also normal in appearance. The lateral articular surfaces are significant for a small focal areas of low grade superficial chondrosis at the central and posterior tibial plateau without deep or delaminating chondral defect. The overall patellofemoral alignment remains anatomic and the TTTG distance and the trochlear inclination angles are normal in appearance. The patellofemoral articular cartilage is significant for mild superficial low grade chondrosis at the midpole median ridge and lateral patellar facet without deep or delaminating chondral defect. There is mild signal hyperintensity within the central deep fibers of the proximal and distal patellar tendon compatible with low-grade patellar tendinosis. No discrete tear is visualized. The distal quadriceps tendon, medial patellofemoral ligament and lateral retinaculum are normal in appearance. No large joint effusion or loose intra-articular body is identified. The musculature is normal in bulk and signal intensity. IMPRESSION: 1. Mild scarring of the proximal femoral attachment of the fibular collateral ligament without evidence for acute abnormality, disruption, or laxity. 2. Minimal signal hyperintensity within the posterior horn root junction of the medial meniscus may represent a normal but mildly prominent vascular pedicle. Alternatively, and the posttraumatic setting, these findings can be seen in the setting of mild meniscal contusion. 3. Scattered low grade superficial tricompartmental chondrosis without deep or delaminating chondral defect. 4. Minimal patellar tendinosis without discrete tear.