46-year-old female with pain. Evaluate for medial meniscal tear. MENISCI: The medial and lateral meniscus appear intact.ARTICULAR CARTILAGE AND BONE: Heterogeneous bone marrow signal abnormality likely represents residual islands of red marrow. There is a full-thickness articular cartilage cleft along the medial facet of the patella with underlying subchondral signal abnormality. There is also a full-thickness articular cartilage cleft along the median eminence of the patella with underlying subchondral signal abnormality.LIGAMENTS: There is increased signal abnormality within the proximal fibers of the lateral collateral ligament proper indicating a sprain or prior injury. The LCL appears intact. The MCL appears intact. The ACL and PCL appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Full-thickness articular cartilage clefts along the patella with underlying subchondral signal abnormality. The medial meniscus appears intact. 2. Findings suggestive of a sprain or prior injury of the lateral collateral ligament proper, which appears intact.