Reason: lateral meniscus tear History: left knee pain and swelling MENISCI: There is a small linear cleft within the posterior horn of the lateral meniscus, reflecting either the site of prior repair or a re-tear. The medial meniscus appears intact. ARTICULAR CARTILAGE AND BONE: Orthopedic changes in the lateral femoral condyle and medial aspect of the tibial plateau reflect prior ACL reconstruction. There is bone marrow edema in the posterolateral tibial plateau and lateral femoral condyle from a contusion injury. There is less pronounced marrow edema within the medial femoral condyle. Articular cartilage of the knee appears unremarkable.LIGAMENTS: There is indistinctness and intermediate signal within the ACL allograft near its tibial attachment. The posterior cruciate ligament appears intact. The medial collateral ligament and lateral collateral ligament complex appear normal. EXTENSOR MECHANISM: The quadriceps and patellar tendons are normal in appearance.ADDITIONAL
1.Findings suspicious for recurrent tearing of the ACL allograft near its tibial attachment, where the bulk of the fibers are indistinct. Findings consistent with hemarthrosis. 2.There is a small linear cleft within the posterior horn of the lateral meniscus, reflecting either the site of prior repair or a re-tear. 