54 year old male. Right knee pain and swelling. Evaluate for right knee medial meniscus tear. MENISCI: Blunting of the free edge of the posterior horn of the medial meniscus consistent with a partial radial tear. There is underlying globular signal abnormality in this horn consistent with intrasubstance degeneration. Lateral meniscus is normal in signal intensity and morphology.ARTICULAR CARTILAGE AND BONE: Diffuse thinning of the patellofemoral compartment cartilage without focal defect. Mild thinning of the medial tibiofemoral compartment cartilage.Bone marrow signal intensity is within normal limits.LIGAMENTS: ACL, PCL, MCL, and lateral collateral ligament complex are intact.EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
Partial radial tear of the posterior horn of the medial meniscus.