Fig. 1From: The predictive value of preoperative neutrophil-lymphocyte ratio (NLR) on the recurrence of the local pigmented villonodular synovitis of the knee jointMacroscopic examination of the synovium before and after the arthroscopic synovectomy. (a-b) hypertrophied synovium with villous transformation and haemosiderin deposition before the surgery, (c-d) images of the knee joint after the synovectomyBack to article page