Pigmented villous nodular synovitis magnetic resonance presentation, magnetic resonance is able to see the thickening of the synovium, and is able to see a lot of rounded nodules in the joint cavity, rounded signals that are characterized by a relatively low intensity. This occurs because hyperpigmented villous nodular synovitis, which contains iron hemoflavin, which tends to form reduced signal nodules, can also be seen in the suprapatellar bursa as low signal nodules. Pigmented villous nodular synovitis, examination of MRI for early diagnosis has some value. Ultimately, the diagnosis of the disease cannot rely solely on magnetic resonance, but requires pathology, which is necessary for the diagnosis of the disease if it contains ferrous hemosiderin deposits, special vascular hyperplasia, and altered villous nodules.