Dientamoeba fragilis is a parasite that causes gastrointestinal problems. Despite its name, Dientamoeba fragilis is not an ameba but a flagellate. This protozoan parasite produces trophozoites; cysts have not been identified. Infection may be either symptomatic or asymptomatic.
Image: A binucleate and uninucleate form of trophozoites of D. fragilis, stained with trichrome. DPDx.
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