[Pleural empyema caused by Salmonella cholerae suis in a patient with breast cancer in the stage of metastatic dissemination].

A pleural localisation of Salmonella cholerae suis infection is described in a patient with breast carcinoma. The evolution of neoplastic disease seems to be more slow after salmonellosis. On the basis of this case the most important mechanisms between immunity and tumors are discussed.