14-year-old male with left knee pain and swelling. MENISCI: Fraying of the inner edge of both menisci without underlying tear or other abnormality.ARTICULAR CARTILAGE AND BONE: No significant abnormality noted.LIGAMENTS: Thickening toward the proximal femoral attachment of the medial collateral ligament with overlying extensive inflammation and fluid. This is compatible with a grade 1 sprain of the medial collateral ligament. The cruciate ligaments appear intact. The lateral collateral ligament is intact.EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
Findings compatible with a grade 1 sprain of the medial collateral ligament.