Reason: please eval for meniscus tear. History: L knee pain MENISCI: The medial meniscus appears intact. There is a focus of fluid signal intensity along the root of the anterior horn of the lateral meniscus which may represent parameniscal cyst formation. The posterior horn appears intact.ARTICULAR CARTILAGE AND BONE: Lobulated focus of signal abnormality in the distal femoral metaphysis consistent with an enchondroma. There is increased signal intensity within the articular cartilage of the lateral tibial plateau beneath the posterior horn of the meniscus representing a focal full-thickness articular cartilage defect. The medial tibiofemoral and patellofemoral compartments appear relatively spared.LIGAMENTS: There is streaky increased signal within the ACL as well as a small cyst within the intercondylar eminence indicating mucoid degeneration. The PCL appears intact. The LCL appears intact. There is edema about the superficial band of the MCL indicating a sprain.EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Findings indicating a sprain of the MCL.2. Parameniscal cyst arising from the root of the anterior horn of the lateral meniscus may indicate a partial-thickness tear, but is of questionable clinical significance.3. Focal full-thickness articular cartilage defect along the lateral tibial plateau. Other findings as described above.