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Entamoeba histolytica cyst
1-4 nuclei, sometimes chromatid bar, rounder
Entamoeba histolytica trophozoite (intestinal tissue)
lots of surrounding cells, white around it (lacuna), single ringlike nucleus
Entamoeba coli cyst
up to 5-8 nuclei, slightly larger than E. histolytica cyst; splintered chromatoidal bar
Iodamoeba butschlii cyst
Large glycogen vacuole/ body which stains red-brown deeply with iodine, no ringlike nucleus
Giardia lamblia cyst
cysts are oval to ellipsoid, Mature cysts have 4 nuclei, while immature cysts have two. Nuclei and fibrils are visible in both iodine-stained wet mounts and trichrome-stained smears.
Giardia lamblia trophozoite
trophozoites are pear-shaped, In permanent, stained specimens, 2 large nuclei are usually visible
Balantidium coli cyst
round, only see peanut/kidney bean shaped macronucleus, have cilia
Balandtidium coli trophozoite
more oval shape, see peanut shaped organelle, have cilia; in intestinal tissue
Entamoeba histolytica components
nuclei
chromatidal bars
Trichomonas trophozoite
like leaf, w/nuclei, couple stringy flagella
Trypanosoma brucei
longer, more squiggly, smaller kinetoplast
Trypanosoma cruzi
C-shaped, bigger kinetoplast
Trypanosome trypomastigote
lose flagella, look like a tadpole, more "fin"?
Trypanosome amastigote
very small, round, deep staining nucleus, kinetoplast; for T. cruzi found in heart tissue
Trypanosome epimastigote
multiply in this form, less "fin"?
Leishmania amastigote
small, cannot distinguish b/t Trypanosome amastigote
Leishmania promastigote
spermy looking, circle nucleus in middle, bar-shaped kinetoplast near flagella end
Toxoplasma gondii tachyzoites
small crescents, look like T. cruzi w/o flagella
Plasmodium vivax thin film
thin ring, schizonts have >12 merozoites, rbcs are enlarged/amoeboid
Plasmodium malariae thin film
thicker ring, compact trophozoite, schizonts have <12 merozoites
Plasmodium falciparum thin film
multiple rings?, won't see mature trophozoites or schizonts bc sequestered in circulatory system!
Plasmodium falciparum gametocyte
banana-shaped, nucleus, many dots in center
P. falciparum trophozoite
ring structure w/2 dark ends
P. falciparum schizont
flower-like?, lots of dots; won't usually see in thin blood film bc sequestered