73-year-old male patient with right knee pain. MENISCI: There is abnormal increased intrasubstance signal intensity in the posterior horn of the medial meniscus that is compatible with minimal intrasubstance degeneration without tearing.There is increased intrasubstance signal intensity in the body and posterior horn of the lateral meniscus with globular increased signal intensity in the posterior horn of the lateral meniscus at its root that extends to the tibial articular surface, compatible with a degenerative tear. Additionally, there is mucoid degeneration within the anterior horn attachment of the lateral meniscus with an adjacent small subchondral cyst in the tibial plateau that is likely degenerative in etiology.ARTICULAR CARTILAGE AND BONE: There is perhaps minimal subjective thinning of the articular cartilage, which is essentially within normal limits for age. We see no fluid-filled defects. Small osteophytes are noted. There is a small focus of abnormal signal intensity in the posterior aspect of the medial femoral condyle, which may represent a developmental defect, although the overlying articular cartilage appears intact.LIGAMENTS: The anterior cruciate ligament, posterior cruciate ligament, medial collateral ligament, lateral collateral ligament complex, and patellar retinacula are intact. EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
1.Mild intrasubstance degeneration of the menisci with possible degenerative undersurface tearing of the root of the posterior horn of the lateral meniscus, the clinical significance of which is uncertain.2.Minimal osteoarthritis, which is commensurate for age, without fluid filled cartilage defect. 3.Other findings as above.