19-year-old female presents with right knee pain. MENISCI: No significant abnormality noted.ARTICULAR CARTILAGE AND BONE: No focal articular cartilage defects are identified. Bone marrow signal intensity is normal. Note is made of a bone island in the lateral femoral condyle.LIGAMENTS: There is intermediate signal intensity on T1-weighted images with high signal intensity on T2-weighted images in the anterior cruciate ligament compatible with a tear, however, some fibers remain intact. The posterior cruciate ligament, medial collateral ligament, and lateral collateral ligament complex are intact.EXTENSOR MECHANISM: The extensor mechanism is intact.ADDITIONAL
Findings compatible with a partial tear of the anterior cruciate ligament.