[Atypical courses of rheumatoid arthritis].

For the investigation of the question of atypical forms of course selected findings of a multicentric electronic data processing investigation carried out on 1,000 patients with manifest rheumatoid arthritis were attracted. In these cases differences of the clinical symptomatology in the sexes were the result, at a different moment of the beginning and concerning serological findings. The latter was concerned clearly by the titres of rheumatoid factors, only suggestively cases with antinuclear factors. These differences, however, were not regarded as special forms in the sense of separated disease units. They rather represent only statistically provable deviations, the borderlines of which are by far transgressed by individual characteristics.