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Acute rheumatoid factor positive (IgM) polyarthritis associated with a Klebsiella pneumonitis
M Magaro'1, L Altomonte, A Zoli
1Divisione Di Reumatologia, Istituto di Clinica Medica, Universita' Cattolica S. Cuore Rome, Italy.
Clinical Rheumatology
|June 1, 1988
Abstract:
The authors report a case of a patient suffering from acute polyarthritis with a high rheumatoid factor titre, associated with a Klebsiella pneumonitis. A polyclonal B lymphocyte activation or a possible cross reaction between rheumatoid factor and an antigen related to Klebsiella may explain the elevated production of rheumatoid factor observed.