17 year-old male with knee pain and instability, concern for PCL tear MENISCI: The menisci are intact bilaterally.ARTICULAR CARTILAGE AND BONE: No significant abnormality noted. No articular cartilage defect, fracture, or bone contusion.LIGAMENTS: The anterior cruciate ligament appears intact. The posterior cruciate ligament is thickened with increased signal intensity, and increased angulation on proton density images indicating a PCL tear. Discernible fibers are identified along the course of the PCL ligament indicating this is a partial tear. The lateral collateral complex ligament appears intact. There is increased signal intensity within the medial collateral ligament indicating a strain.EXTENSOR MECHANISM: No significant abnormality noted. The extensor mechanism is intact.ADDITIONAL
1.Partial tear of the PCL.2.MCL sprain.