Reason: Patient with posterior knee pain and swelling. Unstable knee. Please evaluate for meniscal tear, ligament tear. History: Posterior right knee pain. MENISCI: There is increased signal in the posterior horn of the medial meniscus, likely representing degeneration, which may extend to the tibial articular surface.ARTICULAR CARTILAGE AND BONE: There is marked loss of cartilage in the lateral facet of the patella with underlying cyst formation consistent with severe degenerative changes in the patellofemoral compartment.LIGAMENTS: No significant abnormality noted. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1.Increased signal in the posterior horn of the medial meniscus likely representing degeneration; it is equivocal whether this extends to the tibial articular surface. 2.Severe degenerative changes affect the patellofemoral compartment.