59-year-old male with medial joint line pain, McMurray's sign, knee effusion. Evaluate for medial meniscus tear. MENISCI: No evidence of a meniscal tear.ARTICULAR CARTILAGE AND BONE: No bone marrow edema. There is generalized thinning of the hyaline cartilage of the undersurface of the patella. The medial and lateral femoral fibrocartilage compartments are intact.LIGAMENTS: The cruciate and collateral ligaments are intact.EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
Small knee joint effusion without evidence of a meniscal tear or ligamentous injury.