Left knee pain MENISCI: There is complex but predominantly horizontally oriented tearing of the medial meniscus which extends to rule out the body but also affects the anterior and posterior horns. There is mild extrusion of the meniscus into the medial gutter. The lateral meniscus is intact.ARTICULAR CARTILAGE AND BONE: There is diffuse full-thickness cartilage loss of the medial compartment both of the femoral condyle and tibial plateau. There is underlying degenerative marrow signal. There is diffuse thinning of the lateral compartment although to a lesser degree. There is heterogeneity of the articular cartilage of the patellofemoral compartment with areas of full-thickness loss involving the lateral patellar facet.LIGAMENTS: No significant abnormality noted. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1. Predominantly horizontal tearing of the medial meniscus extending through the anterior horn, body, and posterior horn.2. Severe cartilage loss of the medial compartment with milder changes noted in the patellofemoral and lateral compartments.3. Large Baker's cyst.