Male, 55 years old. Pain. MENISCI: There is linear and globular intrasubstance signal within the posterior horn and body of the medial meniscus indicating degeneration. Signal abnormality within the body and posterior horn of the meniscus extends to the tibial articular surface indicating undersurface tearing, seen in both the red and white zones of the meniscus. The anterior horn of the medial meniscus is intact. There is mild prominence of the body of the lateral meniscus suggesting borderline discoid morphology, but we see no discrete tear.ARTICULAR CARTILAGE AND BONE: There is partial thickness degeneration of the articular cartilage of the medial femoral condyle along its lateral aspect with additional focal degeneration more anteriorly and posteriorly along the condyle associated with small foci of degenerative subchondral signal abnormality. The articular cartilage of the lateral compartment appears relatively spared. There is a focal full-thickness defect of the cartilage of the medial facet of the femoral trochlea with underlying subchondral cyst formation. There is mild superficial degeneration of the articular cartilage of the medial facet of the patella. There is a 3 cm slightly heterogeneous lobulated lesion in the distal femoral metadiaphysis compatible with a benign enchondroma.LIGAMENTS: There is minimal edema along the tibial collateral ligament which otherwise appears intact. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1.Degeneration and undersurface tearing of the medial meniscus.2.Mild cartilage degeneration and other findings as described above.