Blastocystis hominis

(blăs′tō-sĭs″tĭs hŏm′ĭn-ĭs)

A protozoan once thought to be a harmless commensal in the human gastrointestinal tract but now believed to be an intestinal parasite that produces diarrhea, abdominal pain, bloating, and weight loss in some people.

Blastocystis hominis is a sample topic from the Taber's Medical Dictionary.

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