Male 27 years old Reason: right knee pain and swelling. Cartilage damage? History: right knee pain and swelling. MENISCI: The menisci are unremarkable. We see no meniscal tear.ARTICULAR CARTILAGE AND BONE: There is partial-thickness degeneration of the articular cartilage of the medial facet of the patella. The articular cartilage of the lateral facet appears normal, as does the articular cartilage of the femoral trochlea. The articular cartilage of the medial and lateral compartments is normal. We see no fracture.LIGAMENTS: Cruciate and collateral ligaments are intact. EXTENSOR MECHANISM: There is thickening of the proximal fibers of the patellar tendon with focal increased signal intensity of the posterior fibers of the tendon at its patellar attachment, indicating a small undersurface tear. There is mild edema in the adjacent fat pad. There is mild edema within a small enthesophyte projecting from the inferior aspect of the patella. The distal patellar tendon appears normal. The quadriceps tendon appears normal. ADDITIONAL
1.Proximal patellar tendinosis with small undersurface tendon tear as described above.2.Partial-thickness degeneration of articular cartilage along the medial facet of the patella.