45-year-old male patient with left knee pain. Evaluate for medial meniscus tear with Baker's cyst. MENISCI: There is a defect and tear through the posterior horn of the medial meniscus with both a vertical and horizontal component (sagittal T2 series 9 images 25 through 28) along the superior articular surface. The anterior horn of the medial meniscus and the lateral meniscus are intact.ARTICULAR CARTILAGE AND BONE: There is a partial-thickness cleft in the cartilage of the medial patellar facet. There is no focal chondral defect in the medial or lateral compartments.LIGAMENTS: The anterior cruciate ligament, posterior cruciate ligament, medial collateral ligament, and lateral collateral ligament complex are intact. The patellar retinacula are intact. EXTENSOR MECHANISM: Extensor mechanism is intact.ADDITIONAL
1.Tear through the posterior horn of the medial meniscus with both vertical and horizontal components.2.Partial-thickness cartilage cleft in the medial patellar facet.