ATLASINTESTINAL PARASITES (Protozoa)
      LOBOSEA Order: Amoebida

      IODAMOEBA BUTSCHLII

      By Marc Lontie
      ioda1-ic Iodamoeba1-ic

      I.bütschlii: The identification of intestinal amoebae depends on the size and shape
      of trophozoites and cysts and on morphology and number of nuclei.
      Iodamoeba butschlii has a world wide distribution and is considered
      an harmless commensal of the large intestine.

      I.bütschlii trophozoites are rarely observed in feces: they measure 9-20 µm.
      The nucleus has a large karyosome. Cysts are 6-20 µm, ovoid in shape.
      The nucleus, with a large eccentric karyosome, is shift to the periphery
      by a large glycogen mass.

      Iodamoeba1: I.bütschlii: cyst with glycogen vacuole (dark brown with this stain)
      and one nucleus in faeces (Lugol stain).

      Iodamoeba1: Courtesy of Dr. Marc Lontie:
      Director of the laboratory of the
      Medisch Centrum voor Huisartsen,
      Maria Theresiastraat 63a; B-3000 Leuven, Belgium.

       

      By Daisy Zitova RNDr, Ph.D., Marek Bednar, MD, Ph.D.

      ioda2-ic

      Iodamoeba bütschlii: the cysts are usually 6-12 X 5-8 µm in size. 
      In both cysts the nucleus with excentrically placed nucleolus 
      and a large glycogen vacuole are visible. Stained fecal film. 
      Wheatley modification of Gomori‘s trichrome technique. 
      Objective 100 X