PMC6812266_01
Direct smear of BAL in saline. Mobile flagellated trophozoite found under light microscope with x400 magnification.
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fig1
The trophozoites had round and oval-shaped body with more than 50 flagella (Fig. 1).
A multiflagellated protozoa in Giemsa stain, under light microscope with x1000 magnification.
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fig2
There was a large nucleus situated at the base of the tuft itself and many coarse, granulated vacuoles concentrated on the opposite site stained dark purple in Giemsa (Fig. 2).