38-year-old male with popping of left knee, inability to bear weight and severe left knee pain. MENISCI: The lateral meniscus appears intact. There is a bucket-handle tear of the medial meniscus.ARTICULAR CARTILAGE AND BONE: There is a focus of fluid signal intensity within the proximal aspect of the medial tibial plateau which may represent a subchondral cyst. There is partial-thickness articular cartilage degeneration along the lateral facet of the patella with underlying degenerative subchondral signal abnormality. Note is made of a 5 mm focus of decreased signal abnormality along the anterior aspect of the medial femoral condyle which may represent a loose body within the joint.LIGAMENTS: There is increased signal abnormality within the proximal fibers of the meniscofemoral ligament indicating a sprain. The superficial band of the MCL appears intact. The LCL appears intact. The ACL and PCL appear intact.EXTENSOR MECHANISM: The extensor mechanism appears intactADDITIONAL
1. Bucket handle tear of the medial meniscus as described above.2. Articular cartilage degeneration as described above. Subcentimeter focus of signal abnormality may represent a loose body/articular cartilage fragment as described above.3. Joint effusion and Baker's cyst.4. Sprain of the meniscofemoral component of the deep fibers of the MCL. 