Male 30 years old with left knee pain. Evaluate for meniscus tear. MENISCI: The anterior meniscus is slightly diminutive in size but we see no meniscal tear.ARTICULAR CARTILAGE AND BONE: There is a small focus of degeneration involving the cartilage of the femoral trochlea centrally. Mild heterogeneous signal in the cartilage of the patella likely also represents degeneration. There are small cysts within the tibial plateau beneath the root of the posterior horn of the medial meniscus but we see no meniscal tear. There is mild edema in the anterior tibial tuberosity.LIGAMENTS: The cruciate and collateral ligaments are intact. EXTENSOR MECHANISM: There is a longitudinal tear of the distal patellar tendon centrally at its insertion on the anterior tibial tuberosity. The tear involves the majority of the thickness of the tendon disrupting the undersurface fibers but sparing the superficial fibers. The tear is approximately 3 cm in longitudinal dimension and 1 cm in width. The remainder of the tendon appears thickened indicating tendinosis. The distal quadriceps tendon appears normal. Fluid in the deep infrapatellar bursa indicates bursitis. There is mild adjacent soft tissue edema.ADDITIONAL
1.Partial-thickness tear of the distal patellar tendon at its insertion as described above.2.No meniscal tear.3.Other findings as described above.