Right knee pain. Evaluate for lateral meniscus tear. MENISCI: The posterior anchor of the lateral meniscus is indistinct with increased signal, which may represent degeneration though tearing cannot be excluded. Focal punctate increased signal at the anterior apex of the lateral meniscus seen on a single slice and may represent a small cleft, of uncertain clinical significance. The medial meniscus is unremarkable.ARTICULAR CARTILAGE AND BONE: Bone contusions are present in the bilateral femoral condyles and tibial plateaus, lateral greater than medial. No fracture is present.LIGAMENTS: The anterior cruciate ligament is thickened and indistinct, with increased signal. No distinct fibers are visualized, suspicious for partial tearing. However, no retraction is evident. The posterior cruciate ligament is intact. The collateral ligaments are intact. Minimal signal adjacent to the MCL likely represents a mild sprain. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1. Findings suspicious for partial tearing of the anterior cruciate ligament, with associated bone contusions and mild MCL sprain.2. Degeneration of the posterior horn of the lateral meniscus, with possible tearing.