溶组织内阿米巴.ppt

Entamoeba histolytica
溶组织内阿米巴
is the only pathogenic amoeba among all of the intestinal amoeba, causing amoebic dysentery(阿米巴痢疾) or extraintestinal amoebiasis (肠外阿米巴病)(cerebral amoebiasis, amoebic liver abscess, lung abscess).
Preface
inhabits colon. Human are the most suitable hosts, but apes, dogs, mice, pigs have been proved to be parasitized.
In its life cycle, there are 2 stages ( trophozoite and cyst).
Preface
Trophozoite
Cyst
Morphology
Trophozoite
Ectoplasm
Erythrocyte
in food vacuole
Nucleus
Nucleolus
Endoplasm
Trophozoite
RBC
Nucleus
Nucleolus
(iron-haematoxylin stained)
Trophozoite
Cyst
Chromatoid body
拟染色体
Glycogen vacuoles
糖原泡
Uninucleated Cyst
(iron-haematoxylin stained)
2-Nucleated Cyst
Chromatoid body
(iron-haematoxylin stained)