[Richettsial pericarditis and pleurisy].

The authors report two cases of rickettsial disease due to R. Conori with mainly pericarditis in one case, sero-fibrinous pleurisy in the other. They then recall a few general data concerning this rickettsial disease and the very restricted place that it occupies in the etiology of pericarditis and, even more so, in the case of pleurisy. The conditons of diagnosis, which are mainly serological, are discussed, in particular with regard to pericarditis and tuberculous pleurisy.