Pain, unilateral osteoarthritis MENISCI: The medial meniscus appears intact, however the lateral meniscus demonstrates diffuse globular signal within the body extending into the posterior horn with a complex defect largely horizontal linear defect extending to the inferior articular surface. An associated radial tear towards the posterior anchor is also suggested. Extensive fraying of the inner edge is also observedARTICULAR CARTILAGE AND BONE: Diffuse cartilaginous loss with thinning is observed in all 3 compartments with mild underlying edematous changes in the associated lateral femoral condyle and patella. Marrow signal is otherwise unremarkable underlying moderate osteoarthritic changes similar to the plain film.LIGAMENTS: No significant abnormality noted. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1. Complex degenerative changes throughout the lateral meniscal body and posterior horn, as described2. Extensive cartilaginous loss with underlying moderate osteoarthritic changes 3. Large Baker's cyst