Parasitology slide qz

E. histolytica trophozoite

single nucleus with centrally placed karyosome. Cytoplasm contains ingested RBC’s.

E.histolytica cyst

four nuclei and a chromatoid body with blunt ends

E. hartmani trophozoites

smaller than E.histolytica

E.hartmani cysts

smaller than E.histolytica

E.coli cysts

more than four nuclei

E. coli trophozoites

single nucleus with coarse granules and vaculoes “dirty cytoplasm”

E.nana cysts

four nuclei. centrally karyosome only visible in trichrome stain

E.nana trophozoites

single nucleus with a blot-like karyosome

l. butschlii cysts

large glycogen vacuole

l.buschlii trophozoites

similar to E.nana but more rounder

E. polecki cysts

large nucleus with numerous chromatoid

E.polecki trophozoites

distorted and irregularly shaped nucleus

E. gingivalis trophozoites

single nucleus with leukocytes in the cytoplasm

N. fowleri cysts

N. fowleri trophozoites

Acanthamoeba cysts

two layered wall with pores

Acanthamoeba trophozoites

spine-like processes

Giardia lamblia

“wearing glasses” appearance with axostyles down the middle

Chilomastix mesnili

pear shaped and posterior end tapers off to a point

Dientamoeba fragilis

binucleate (two nucleus) with a fragmented karyosome

Trichomonas hominis

single nucleus with five flagella

Trichomonas vaginalis

five flagella, wide anterior, single nucleus

Leishmania

T. gambiense and T.rhodesiense

T.cruzi

P. vivax

P. ovale

P. malariae

P. falciparium

Babesia

B.coli trophozoite

B.coli cysts

Cryptosporidium parvum

Blastocyctis hominis

Toxoplasma gondii

Pneumocystis carinii

Enterobius vermicularis egg

Enterobius vermicularis worm

Trichuris trichuria egg

Trichuris trichuria worm

whip like end

Ascaris lumbricoides fertilized egg

Ascaris lumbricoides unfertilized egg

Ascaris lumbricoides worm

Necator americanus

Ancylostoma duodenale

Strongyloides stercoralis

Trichinella spiralis

Dracunculus medinensis

Wuchereria bancrofti

long and thread-like

Brugia malayi

“sheathed”

Loa loa

Onchocerca volvulus

Taenia saginata

four large suckers, adult worms are flat and long

Taenia solium

four large suckers with two rows of hooks

Hymenolepis nana

two suckers with hooks

Diphyllobothrium latum

Echinococcus granulosus

Fasciolosis buski

Fasciola hepatica

Clonorchis sinensis

Paragonimus westermani

Shistosoma japonicum

large and round with small spine

Shistosoma haematobium

terminal spine

Shistosoma mansoni

prominent lateral spine