[Pulmonary mycobacteriosis due to Mycobacterium chelonei: a report on a new case (authors' transl)].

Mycobacterium chelonei is a saprophytic germ usually devoid of pathogenic activity. Over a period of about the last ten years, however, several cases have been reported, including twelve cases of bronchopulmonary affections, in which it has been the infecting organism. The radiographic appearance is in every respect similar to that observed in pulmonary tuberculosis. A positive diagnosis of infection due to this germ can be made by the absence of Kuch's bacillus the lack of therapeutic effect of antituberculous medication, a positive skin reaction to specific antigens, and positive Mycobacterium Chelonei cultures from biopsy specimens. A new case of this infection is reported.