False-positive Rheumatoid Factor in Sarcoidosis in Childhood

Mitchell, C. D.; Larcher, V. F.; Shaw, D. G.; Ansell, B. M.
December 1986
Clinical Pediatrics;Dec1986, Vol. 25 Issue 12, p604
Academic Journal
The article reports on false-positive rheumatoid factor in sarcoidosis in childhood. Sarcoidosis, a multisystem granulomatous disorder associated with a positive Kveim reaction and a raised serum angiotensin converting enzyme, is rare in childhood. The distinction between sarcoidosis presenting with arthropathy and RF-positive JRA is important if appropriate prognosis and treatment are to be given. Only 16 cases of childhood sarcoidosis with joint involvement have been reported; none were reported as having elevated RF titers.


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