Clinical and Pathological Studies of Joint Involvement in Sarcoidosis

Abstract
THIS paper deals with a little known form of sarcoidosis in which polyarthritis is a conspicuous or dominant clinical finding. In extensive reviews of the literature on sarcoidosis, articular involvement is either not mentioned or noted as an infrequent finding.1 2 3 4 In three recent studies,5 6 7 however, arthritis was found to occur in 25, 10 and 22 per cent of cases respectively. Although at times sarcoidosis coexists with rheumatoid arthritis,8 this diagnosis, or rheumatic fever9 or the arthritis occurring with erythema nodosum, has been made in patients with sarcoidosis because of the failure to recognize the existence of joint involvement in sarcoidosis. . . .

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