cryostat section of synovial tissue from patients with rheumatoid arthritis , ankylosing spondylitis , osteoarthrosis , pigmented villonodular synovitis , and from a normal knee were studied by indirect immunofluorescence with guinea-pig antibodies to the intermediate filament proteins prekeratin , vimentin , and desmin .
C0039099
synovial tissue
C0039106
pigmented villonodular synovitis