Reason: Patella Chondromalacia History: Pain MENISCI: There is linear and globular increased signal intensity within the anterior horn of the lateral meniscus that also extends into the body of the meniscus in a horizontal fashion indicating degeneration. This linear signal intensity appears to contact the tibial articular surface suggesting a degenerative horizontal tear. Furthermore, the mucoid material extends to the periphery of the meniscus to form an elongated parameniscal cyst that runs along the anterior, lateral, and possibly posterior aspects of the meniscus. There is slight blunting of the posterior horn of the lateral meniscus which may represent mild fraying. The medial meniscus appears intact.ARTICULAR CARTILAGE AND BONE: There is severe degeneration of the articular cartilage of the medial facet of the patella and femoral trochlea with much of the facets being devoid of articular cartilage. There is associated degenerative subchondral signal abnormality in the surrounding area. There is relatively mild degeneration of the articular cartilage of the lateral facet of the patella. We see no fluid-filled articular cartilage defects affecting the medial and lateral tibiofemoral compartments. There are tricompartmental osteophytes.LIGAMENTS: The cruciate and collateral ligaments appear intact. There is a lobulated collection of fluid signal intensity along the posterior margin of the PCL which may represent ganglion formation. There is thickening and intermediate signal intensity within the proximal fibers of the LCL proper which may represent prior sprain or degeneration.EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Severe osteoarthritis of the patellofemoral joint, predominantly involving the medial facets.2. Degeneration and degenerative tearing of the lateral meniscus with parameniscal cyst formation.3. Other findings as described above.