Right knee pain and swelling with persistent locking MENISCI: No significant abnormality noted.ARTICULAR CARTILAGE AND BONE: No significant abnormality noted.LIGAMENTS: No significant abnormality noted. EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
Small joint effusion with multiple foci of low signal intensity within the knee joint highly suggestive of pigmented villonodular synovitis (PVNS).