Left knee pain and effusion MENISCI: The medial meniscus is intact. The body of the lateral meniscus appears mildly prominent suggesting a slight discoid configuration but we see no discrete meniscal tear.ARTICULAR CARTILAGE AND BONE: There is mildly increased signal intensity of the articular cartilage of the lateral patellar facet suggesting chondromalacia but there is no focal fluid-filled cartilage defect identified. The articular cartilage of the medial and lateral compartments is preserved. The bone marrow signal of the knee is normal.LIGAMENTS: The cruciate and collateral ligaments are intact. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
Moderate joint effusion with mild nonspecific posterior soft tissue edema. The possibility of a ruptured Baker's cyst is considered. There is perhaps mild chondromalacia of the lateral patellar facet but otherwise there are no findings to suggest internal derangement. 