Reason: ACL tear History: lateral knee impact with Rugby - + Lachman's, + McMurray's MENISCI: Tear of the root and posterior horn of the lateral meniscus with extrusion of the lateral meniscus. No definite medial meniscal tear.ARTICULAR CARTILAGE AND BONE: T1 dark and T2 dark focus in the lateral femoral condyle likely represents a benign bone island. Bone marrow edema of the posterolateral corner of the tibia and medial femoral condyle, likely contusion. Linear fluid signal in the mid patellar cartilage (series 6 image 13), likely representing partial thickness fissuring of the cartilage. Femorotibial cartilage appears intact. Moderate joint effusion.LIGAMENTS: There is complete tear of the anterior cruciate ligament. Posterior cruciate ligament is intact. Mildly increased signal around the medial collateral ligament, which may represent mild sprain. Lateral collateral ligament is intact. EXTENSOR MECHANISM: There is mildly increased signal at the patellar tendon attachment at the inferior patella, suggestive of tendinosis or interstitial tear. Quadriceps tendon is intact.ADDITIONAL
1. Complete tear of the anterior cruciate ligament with moderate joint effusion. 2. Posterior horn and root tear of the lateral meniscus.