Case study of lophomonas bronchopulmonary infectinon in human being

Human infections with Lophomonas sp. are rare. The majority of the infections occurred in China, 94.1% (128/136 cases) of all cases in the world from 1993-2014 [5],[9]. This infection is difficult to differentiate from other pulmonary infections with similar symptoms. we reported a case of Lophomonas sp. infection confirmed by bronchoalveolar lavage fluid smear on the microscopic observations. A 43-year-old female teacher was admitted to the hospital because of hemoptysis, then we observed the smear of BAL under microscope and discovered Lophomonas sp.The patient was treated with metronidazole and had a good result. The etiological characteristics, mode of transmission, clinical symptoms, possible diagnostic basis and treatment of this disease are discussed in order to provide a better knowledge about Lophomonassp. infection Key words: Lophomonas sp, bronchopulmonary, case report, literature review