26-year-old male. Pain and catching. Evaluate for meniscus injury. MENISCI: Medial and lateral menisci are intact.ARTICULAR CARTILAGE AND BONE: Bone marrow signal intensity is within normal limits without evidence of contusion or fracture. Marked cartilage thinning of the weight-bearing surface of the medial aspect of the lateral femoral condyle; no full thickness defect is evident. Medial tibiofemoral compartment and patellofemoral compartment cartilage is intact.LIGAMENTS: ACL, PCL, MCL, and lateral collateral ligamentous complex are intact.EXTENSOR MECHANISM: Fluid signal intensity septated cystic foci in the soft tissues posterior to the medial femoral condyle consistent with ganglion cysts.ADDITIONAL
1. Diffuse marked cartilage thinning of the medial aspect of the lateral femoral condyle without a full thickness defect. 2. No evidence of a meniscal tear or ligamentous injury.