Left knee pain and swelling. MENISCI: No significant abnormality noted. No meniscal tear is seen.ARTICULAR CARTILAGE AND BONE: There is moderate thinning of the articular cartilage along the medial facet of the patella, with underlying bone marrow reactive changes and cyst formation. Minimally increased signal is noted in the articular cartilage of the lateral patellar facet, without defects or underlying bone marrow reactive changes. The articular cartilage of the tibiofemoral compartments is within normal limits. LIGAMENTS: No significant abnormality noted. The cruciate and collateral ligaments are intact.EXTENSOR MECHANISM: No significant abnormality noted.ADDITIONAL
Cartilage degeneration at the medial facet of the patella, as above.