Quick Review Cards for Medical Laboratory Science

Intestinal Amebaecontinued Clinical Microbiology Review 238

AMEBA NUCLEUS TROPH CYST PATHOGENICITY OTHER

Blastocystis

hominis

All amebae are transmitted by ingestion of fecally contaminated food or water.

Should be

quantitated.

Formerly clas-

sified as yeast;

now considered

an ameba.

Up to 4,

pushed to

the side.

Round. 6–40 μm. Large central

body.

Uncertain.

(From Leventhal R, Cheadle RF.

Medical Parasitology: A Self-

Instructional Text, 5th ed.

Philadelphia: FA Davis; 2002:95.)

None