19-year-old female with left knee pain Evaluation of the proximal tibia is limited by metallic susceptibility artifact resulting from an intramedullary rod.MENISCI: The menisci are intact.ARTICULAR CARTILAGE AND BONE: Mild increased signal intensity of the articular cartilage of the lateral facet of the patella inferiorly is suspected to be of no clinical significance although could conceivably represent mild intrasubstance degeneration. No fluid-filled cartilage defects. No bone marrow lesions.LIGAMENTS: The collateral and cruciate ligaments are intact.EXTENSOR MECHANISM: Diffuse thickening of the patellar tendon compatible with tendinosis with mild signal intensity within the proximal fibers at the patellar attachment. No fluid signal intensity to indicate a tear is seen. Quadriceps tendon appears intact.ADDITIONAL
Postoperative changes and thickening of the patellar tendon compatible with tendinosis. Otherwise, no findings to account for the patient's knee pain.