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Description:Magnified 1150X, this trichrome-stained photomicrograph revealed the presence of a parasitic Dientamoeba fragilis trophozoite.
Dientamoeba fragilis is a flagellate that must be morphologically differentiated from the small nonpathogenic amebas. D. fragilis has no cyst stage, and its trophozoites measure 5 to 15┬Ám. The flagella are not usually evident and the pseudopodia are angular to broad-lobed and transparent. While most trophozoites are typically binucleate, some have only one nucleus.
High Resolution: Click here for hi-resolution image (18 MB)
Content Providers(s):CDC/ Dr. Green
Creation Date:1967
Photo Credit:
Links:CDC - Nat. Cntr. for Infectious Diseases (NCID); Div. of Parasitic Diseases (DPDx): Dientamoeba fragilis
CDC Organization
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.