title: Infective endocarditis due to Leptotrichia buccalis: a case report.
abstract: A patient with Down's syndrome presented with infective endocarditis due to Leptotrichia buccalis. The source of the infection was not detected, but the predisposing factor was a complex cardiac malformation. The disease followed a subacute course, had a number of immunologic manifestations and was successfully treated with a 28-day course of penicillin G, given intravenously. L. buccalis has never been reported before as a cause of endocarditis.
mesh_terms: D000328:Adult; D001438:Bacteroidaceae; D004697:Endocarditis, Bacterial / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*; D006801:Humans; D008297:Male