34 year old female. Left knee pain. Evaluate for chondromalacia patella versus meniscus tear. Status post left knee surgery 2001. MENISCI: Medial and lateral menisci are intact.ARTICULAR CARTILAGE AND BONE: Metal artifact from tibial screws somewhat limits evaluation. Bone marrow signal intensity is unremarkable within this limitation. Small focal areas of high signal intensity in the medial patellar facet articular cartilage with associated moderate thinning consistent with chondromalacia; no full thickness defect. Tibiofemoral articular cartilage is normal in thickness without a focal defect.LIGAMENTS: ACL, PCL, MCL, and LCL are intact.EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
1. Chondromalacia of the medial patellar facet without a full thickness defect.2. No evidence of a meniscal tear or ligamentous injury. 