Reason: Evaluate for ACL tear, meniscus injury and possible MCL injury History: left knee pain MENISCI: There is curvilinear signal abnormality within the peripheral half of the posterior horn of the medial meniscus extending to the tibial articular surface indicating an undersurface tear that extends into the body of the meniscus. Additionally, there is blunting of the free edge of the posterior horn of the medial meniscus likely representing a radial tear in the absence of prior partial meniscectomy. The anterior horn appears intact. The body of the lateral meniscus is abnormally prominent suggesting a discoid morphology, but we see no tear.ARTICULAR CARTILAGE AND BONE: We see no focal articular cartilage defects. The bone marrow signal intensity is normal.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Abnormal signal intensity and morphology of the medial meniscus suggesting tearing in the absence of prior partial meniscectomy.2. Discoid lateral meniscus and other findings as described above.3. The MCL is normal in appearance.