51-year-old female with pain, stiffness and swelling. MENISCI: There is globular increased signal abnormality within the anterior horn of the lateral meniscus consistent with intrasubstance degeneration. Some of this signal extends to the tibial articular surface consistent with degenerative tearing/fraying. There is focal fluid signal intensity within the body of the lateral meniscus consistent with meniscal cyst, indicating a tear. The posterior horn appears intact. There is globular increased signal abnormality within the posterior horn of the medial meniscus consistent with intrasubstance degeneration. Some signal extends to the tibial and femoral articular surfaces consistent with degenerative fraying. There is a full-thickness radial tear affecting the posterior horn of the medial meniscus (coronal series 8; image 20).ARTICULAR CARTILAGE AND BONE: No bone marrow signal abnormalities identified. No full-thickness or near full-thickness articular cartilage defects are identified.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Tearing of the medial and lateral meniscus, including a radial tear of the posterior horn of the medial meniscus as described above.2. Small joint effusion. Other findings as described above.