Development of polymyositis after long-standing rheumatoid arthritis.
Rheumatoid arthritis (RA) and polymyositis (PM) are distinct clinical syndromes. The concurrent diagnoses of RA and PM in the same patient are rare. We describe a patient who developed outright PM after 16 years of well established RA, review the literature, and highlight the need to consider a broad base of differentials including PM in the diagnosis of muscle weakness in RA.
Rohekar
Sherry
S
Department of Rheumatology, St. Michael's Hospital, University of Toronto, Ontario, Canada.
Rubin
Laurence
L
D000328:Adult; D001172:Arthritis, Rheumatoid / Q000150:complications* / Q000188:drug therapy / Q000503:physiopathology; D005260:Female; D005938:Glucocorticoids / Q000627:therapeutic use; D006801:Humans; D017285:Polymyositis / Q000188:drug therapy / Q000209:etiology* / Q000503:physiopathology; D016896:Treatment Outcome
D005938:Glucocorticoids