Female 77 years old; Reason: chronic R knee pain Due to the patient's body habitus and knee swelling, the high-definition MRI coil was not able to be used. An alternate coil was used, resulting in suboptimal image quality.MENISCI: There is horizontally oriented signal abnormality within the posterior horn of the medial meniscus extending to the femoral articular surface, indicating a horizontal tear. Globular signal abnormality replaces much of the body of the medial meniscus, compatible with mucoid degeneration, and extends to the femoral articular surface suggesting additional degenerative tearing. The anterior horn of the medial meniscus is relatively intact.The anterior horn of the lateral meniscus is not visualized, likely secondary to extensive degeneration and tearing. There is deformity and signal abnormality of the body of the lateral meniscus, particularly anteriorly, indicating extensive tearing. The body of the lateral meniscus is extruded laterally. The posterior horn of the lateral meniscus is relatively intact.ARTICULAR CARTILAGE AND BONE: Moderate-to-severe tricompartmental osteoarthritis affects the knee, with areas of full-thickness cartilage loss in all 3 compartments. Multiple foci of degenerative edema-type signal and subchondral cysts are seen in the underlying bone. Tricompartmental osteophytes are noted.LIGAMENTS: The ACL is intact, though with increased signal intensity, indicating mucoid degeneration. The PCL is intact. Linear increased signal within the proximal fibers of the MCL may represent an old tear, however, we see no adjacent edema to suggest acute injury. The LCL complex is intact.EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
Osteoarthritis, meniscal tears, and joint effusion, as described above.