Fig. 1From: Diffuse pigmented villonodular synovitis treated with arthroscopic total synovial peelPreoperative MRI showed that the synovial membrane of the knee joint was significantly thickened, showing nodular low T2WI and T1WI low signal changes. A. T1WI, B. T2WI. Red arrows indicate mainly located in the infrapatellar fat pad and next to the cruciate ligamentBack to article page