46-year-old female with left knee pain. Evaluate for medial meniscus tear. MENISCI: The anterior horn of the lateral meniscus is abnormally small consistent with tearing. There is blunting of the posterior horn of the lateral meniscus. The medial meniscus is intact.ARTICULAR CARTILAGE AND BONE: There is thinning of the articular cartilage of the lateral compartment and irregularity of the weightbearing surface of the medial femoral condyle without evidence of full-thickness cartilage defect. There is marked thinning of articular cartilage in the patellofemoral joint with delamination along the lateral patellar facet and multiple partial thickness cartilage defects.Bone marrow signal intensity is within normal limits.LIGAMENTS: The cruciate and collateral ligaments are intact. EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1.Tearing of the anterior horn of the lateral meniscus and blunting of the posterior horn of the lateral meniscus. The medial meniscus is intact.2.Chondromalacia most severe in the patellofemoral compartment.3.Small Baker's cyst.