16 year old female with history of internal knee derangement. MENISCI: The medial and lateral menisci are intact.ARTICULAR CARTILAGE AND BONE: Bone marrow signal intensity is within normal limits. The articular cartilage is unremarkable.LIGAMENTS: The ACL, PCL, MCL, and LCL are intact. EXTENSOR MECHANISM: There is mild thickening and focal increased signal intensity of the proximal fibers of the patellar tendon particularly along its medial aspect suggesting tendinosis (jumper's knee). The distal patellar tendon and quadriceps tendon appear normal.
Mild proximal patellar tendinosis.