Sagittal Fat-Sat T2WI, T1WI, coronal Fat-Sat T2WI and axial Fat-Sat T2WI of the left knee were obtained without contrast. Patellar alta is seen, without lateral gliding or tilting. Small focal partial thickness cartilaginous fraying is seen at the lateral patellar facet on axial image 22. Mild postpatellar effusion is seen. Medial plica hypertrophy and adjacent synovial thickening are seen.Mild to moderate prepatellar soft tissue edema is seen. Mild edema in the proximal patellar tendon is seen, consistent with mild insertional tendinopathy. The quadriceps tendon, medial, and lateral patellar retinacula are intact.Mild edema at the distal IT band is seen. The lateral collateral ligament, popliteus tendon, and biceps femoris tendon are intact. Mildly increased signal intensity is seen in the lateral meniscus, without tear. The proximal tibiofibular joint appears intact.The anterior and posterior cruciate ligaments are intact. Increased intrasubstance signal intensity and mild degenerative outer extrusion of the medial meniscus are seen, without defined tear. No additional cartilaginous abnormality is seen.Bulky appearing proximal to mid medial collateral ligament is seen, variation or due to old sprain. The semimembranosus or pes anserine tendons are intact. An irregular Baker’s cyst is seen, about 30 x 10 x 10 mm in size anterosuperior to the semimembranosus tendon and about 20 x 9 x 8 mm in size in posteroinferior to the semimembranosus tendon. The muscles are intact. Impression: Patellar alta and a focal mild to moderate chondrosis (ICRS 2) at the lateral patellar facet.Mild postpatellar synovitis and medial plica hypertrophy. Prominent prepatellar bursitis.Mild proximal patellar tendinopathy. Minimal bursitis at the distal IT band.Mild lateral meniscal degeneration. Medial meniscal degeneration with mild degenerative outer extrusion.Bulky appearing proximal to mid medial collateral ligament, variation or due to old sprain.An irregular moderate sized Baker’s cyst as described above.