52-year-old female with right knee popping/pain for one and a half years with standing. Evaluate right knee for lateral meniscus tear. MENISCI: There is blunting of the free edge of the body of the lateral meniscus corresponding to a small radial tear. There is also increased signal intensity within the peripheral half of the anterior horn of the lateral meniscus indicating intrasubstance degeneration and degenerative tearing with several small adjacent parameniscal cysts. The medial meniscus appears intact.ARTICULAR CARTILAGE AND BONE: There is thinning of the articular cartilage along the medial facet of the patella indicating moderate degeneration with what appears to be delamination. There is a small cleft of low signal intensity within the articular cartilage of the femoral trochlea, centrally, which likely represents a non fluid filled defect. There is also a focus of low signal intensity within the articular cartilage of the medial facet of the femoral trochlea, more inferiorly, that likely represents an additional focus of degeneration with underlying subchondral cysts. There is heterogeneity of the articular cartilage of the lateral tibial plateau with foci of increased signal intensity suggesting full-thickness cartilage degeneration. There is a focus of low signal intensity along the posterior cortex of the distal femoral metaphysis medially, that may reflect a former cortical desmoid of doubtful clinical significance.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Small radial tear of the body of the lateral meniscus along with degeneration and degenerative tearing of the anterior horn of the lateral meniscus with tiny adjacent parameniscal cysts.2. Cartilage degeneration as described above.