Reason: r/o repeat meniscus tear History: pain MENISCI: There is linear increased signal abnormality within the body of the meniscus which extends to the tibial articular surface indicating a longitudinal tear, new from prior examination (image 28; series 701 and image 27; series 501). There is blunting and deformity of the posterior horn of the lateral meniscus. The medial meniscus appears intact.ARTICULAR CARTILAGE AND BONE: There is a focal full-thickness articular cartilage cleft with delamination along the weightbearing surface of the medial femoral condyle above the body of the meniscus. Note is made of a lesion along the medial aspect of the distal femoral metaphysis with sclerotic margins likely representing a benign nonossifying fibroma, appearing similar to the prior study.LIGAMENTS: There is thickening and foci of fluid signal intensity internally within the ACL likely representing mucoid degeneration. There are also foci of fluid signal intensity about the anterior and posterior aspect of the PCL which may represent mucoid degeneration as well. The ACL and PCL appear intact. The LCL and MCL appear intact.EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
1. Findings indicating a new tear of the body of the lateral meniscus as described above. There is blunting and deformity of the posterior horn of the lateral meniscus which also likely represents a re-tear, although some of this may be related to the patient's history of prior partial meniscectomy.2. Full-thickness articular cartilage cleft with delamination along the medial femoral condyle. 3. Moderate-sized joint effusion. Other findings as described above.