26-year-old male. Right knee pain x 3 months following ski injury. MENISCI: Horizontal tear through the body of a discoid lateral meniscus. There is globular signal abnormality within this meniscus consistent with intrasubstance degeneration. Medial meniscus is normal in signal intensity and morphology without evidence of a tear.ARTICULAR CARTILAGE AND BONE: Edema type signal in the lateral tibial plateau consistent with a bone contusion. Tibiofemoral and patellofemoral compartment cartilage is intact.LIGAMENTS: ACL, PCL, MCL, and lateral collateral ligament complex is intact.EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1. Horizontal degenerative tear of a discoid lateral meniscus.2. Bone contusion of the lateral tibial plateau.