preferred_name: Polyarticular villonodular synovitis in knees, ankles, wrists, and/or elbows
preferred_name_lc: polyarticular villonodular synovitis in knees, ankles, wrists, and/or elbows
label: Polyarticular villonodular synovitis in knees, ankles, wrists, and/or elbows
label_lc: polyarticular villonodular synovitis in knees, ankles, wrists, and/or elbows