RT Journal Article
SR Electronic
T1 Development of polymyositis after long-standing rheumatoid arthritis.
JF The Journal of Rheumatology
JO J Rheumatol
FD The Journal of Rheumatology
SP 362
OP 363
VO 33
IS 2
A1 Sherry Rohekar
A1 Laurence Rubin
YR 2006
UL http://www.jrheum.org/content/33/2/362.abstract
AB 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.