Reason: left knee pain and instability MENISCI: There is a complex branching signal in the posterior horn of the medial meniscus with a radial tear at the root and moderate extrusion. The lateral meniscus is intact.ARTICULAR CARTILAGE AND BONE: There is full-thickness cartilage loss of the central weightbearing zone of the medial compartment. There is also full-thickness cartilage loss of the medial patellar facet and trochlea.LIGAMENTS: The ACL, PCL, MCL, and LCL are intact. EXTENSOR MECHANISM: The patellar and quadriceps tendons are intact. There is a small joint effusion with mild synovial proliferation.ADDITIONAL
1. Complex tear of the posterior horn of the medial meniscus.2. Mild synovitis with likely juxta-articular ganglion cyst.