Rheumatoid arthritis; the diagnostic significance of focal cellular accumulations in the skeletal muscles.
D001168:Arthritis; D001172:Arthritis, Rheumatoid / Q000175:diagnosis*; D006801:Humans; D018482:Muscle, Skeletal; D009132:Muscles / Q000473:pathology*
ARTHRITIS, RHEUMATOID/diagnosis; MUSCLES/pathology