Acute amoebic dysentery due to free-living amoebae treated with methronidazole.

A case of non-fatal acute amoebic dysentery without symptoms of meningoencephalitis, due to free-living amoebae possibly of the genus Acanthamoeba, is reported. The disease was diagnosed by the presence of motile amoebae in the fresh, wet preparation of the stool. The case was treated successfully with metronidazole.