Female 20 years old Reason: evaluate for injury History: pain after 15 mi run, instability with knee "buckling" twice MENISCI: No meniscal tears.ARTICULAR CARTILAGE AND BONE: Bone marrow signal intensity is normal. There is a linear focus of low signal intensity extending through the articular cartilage of the femoral trochlea; this could represent a non-fluid-filled full-thickness cartilage fissure. The remainder of the cartilage appears normal.LIGAMENTS: The cruciate and collateral ligaments are intact. There is mild edema between the iliotibial band and lateral femoral condyle suggesting "iliotibial band friction syndrome". EXTENSOR MECHANISM: Appears normal.ADDITIONAL
1.Findings suggestive of iliotibial band friction syndrome.2.Findings suggestive of a non-fluid filled fissure of the cartilage of the femoral trochlea.