Calf cyst arising from the knee joint in rheumatoid arthritis.
D000368:Aged; D001172:Arthritis, Rheumatoid / Q000150:complications*; D003560:Cysts / Q000209:etiology* / Q000473:pathology / Q000601:surgery; D006801:Humans; D007719:Knee Joint; D008297:Male; D013582:Synovial Fluid / Q000378:metabolism