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Identification of Blastocystis hominis by colonic brush cytology. A case report
E A Dellers1, J C Dunn, P DeSantis
1Department of Pathology, Pennsylvania Hospital, Philadelphia 19107.
Acta Cytologica
|September 1, 1992
Abstract:
Blastocystis hominis is a unicellular organism the pathogenic potential of which in humans remains unclear. It may be identified during a workup for gastrointestinal symptoms, usually in stool examined for ova and parasites. We describe a case in which B hominis was identified by cytologic examination in a patient with Crohn's disease who underwent colonoscopy and brushing of a transverse colon stricture. The morphologic features of this organism are described and contrasted with those of the uninucleate cyst form of Entamoeba histolytica.