title: Presumptive evidence for Blastocystis hominis as a cause of colitis.
abstract: A patient with persistent diarrhea was found to have biopsy-proved colitis with large numbers of the protozoan Blastocystis hominis present in stool. Extensive evaluation failed to reveal any other potential etiologic agent of acute colitis. Following treatment with a course of metronidazole, the patient became asymptomatic, B hominis was no longer present in stool, and results of a repeated biopsy were normal. These observations are consistent with the role of B hominis as a gastrointestinal pathogen.
authors: Department of Medicine, University of Massachusetts Medical Center, Worcester 01655.
authors: A R
authors: AR
authors: Russo
authors: S L
authors: SL
authors: Stone
authors: M E
authors: ME
authors: Taplin
authors: H J
authors: HJ
authors: Snapper
authors: G V
authors: GV
authors: Doern
mesh_terms: D000368:Aged; D003092:Colitis / Q000469:parasitology*; D006801:Humans; D007411:Intestinal Diseases, Parasitic / Q000469:parasitology*; D008297:Male; D011528:Protozoan Infections