22-year-old male 2 years of medial knee pain with a sense of instability and occasional catching. MENISCI: The medial meniscus appears intact. The lateral meniscus appears intact.ARTICULAR CARTILAGE AND BONE: The articular cartilage appears intact without evidence of near full-thickness or full-thickness articular cartilage defects. No bone marrow signal abnormality is identified.LIGAMENTS: The cruciate and collateral ligaments appear intact. EXTENSOR MECHANISM: The extensor mechanism appears intact.ADDITIONAL
Small amount of fluid within the joint but no large effusion or other findings to account for the patient's knee pain, instability, or catching. 