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Siebrandus Sixtius: evidence of rheumatoid arthritis of the robust reaction type in a seventeenth century Dutch priest.
  1. J Dequeker
  1. Rheumatology Unit, K U Leuven, Universitair Ziekenhuis, Belgium.


    Rheumatoid arthritis of the robust reaction type has been diagnosed in a seventeenth century Dutch priest, Siebrandus Sixtius, based on pictorial evidence of typical hand deformities and historical evidence affirming that he had chronic nodular rheumatism for many years. This case report, in conjunction with other pictorial depictions of probable rheumatoid arthritis, questions the view that rheumatoid arthritis is a modern disease which prevailed in the New World and was found in the Old World only after the discovery of America.

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