摘要:Figures Authors S. He A. Cuguilliere * Hôpital d’instruction des armées Robert Picque, Service de pneumologie CS 80002, 33882 Villenave-d’Ornon Cedex * Correspondance Key words: blastomycosis, exotic mycosis, pneumonia, Canada DOI : 10.1684/mst.2015.0526 Page(s) : 35-8 Published in: 2016 We report a case of pulmonary blastomycosis in a young man recently returned from a journey in Canada. He had acute pneumonia resistant to various antibiotics. Blastomycosis is an endemic mycosis in Canada and the United States, most frequently affecting the lungs, although extrapulmonary dissemination occurs in approximately one third of cases. Diagnosis is made by identification of Blastomyces dermatidis at direct examination or in culture. The lack of precise knowledge concerning the natural habitat of this microorganism is an obstacle to effective prevention.