Iodamoeba butschlii is an ameba that is considered nonpathogenic
Disease / Pathogenesis
Iodamoeba butschlii is nonpathogenic
Location in the Host
Iodamoeba butschlii is located in the lumen of the colon and cecum.
Iodamoeba butschlii is found worldwide.
Ingestion of the cyst stage of the ameba is the main form of transmission. The cyst stage will be found in contaminated water and food.
Morphology & Diagnosis
Iodamoeba butschlii cyst and trophozoites can be detected in feces by performing an ova & parasite examination.
The trophozoites are 8-20u with a sluggish and nonprogressive movement. The karysome of the nucleus is characteristically large and centrally located. The nucleus contains no peripheral chromatin. Meanwhile the cytoplasm is coarsely granular and may contain debris such as vacuoles, bacteria, yeast.
The cyst is 5-20u and usually has a characteristic discrete glycogen mass in the cytoplasm. This glycogen mass takes up a large portion of the cyst. The cyst is round to ellipsoid in shape. Lugol’s iodine preps will stain the mass a dark brown color while trichrome staining will produce a light to minimal staining of the glycogen mass.