15-year-old male with right knee pain for 3 months MENISCI: Menisci are intact.ARTICULAR CARTILAGE AND BONE: The articular cartilage is intact. No bone marrow edema or fracture.LIGAMENTS: The anterior cruciate and posterior cruciate ligaments are intact. The medial collateral ligament is intact. The lateral collateral complex is intact and normal in appearance. EXTENSOR MECHANISM: The extensor mechanism is intact. There is edema at the quadriceps tendon insertion on the patella without discrete tear. Edema of the lateral retinaculum without discrete tear. ADDITIONAL
Edema of the quadriceps tendon insertion on the patella and of the lateral retinaculum. Subcutaneous soft tissue edema.