Streptococcus equinus endocarditis in a patient with pulmonary histiocytosis X
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Published on: April 7, 2015
1Department of Internal Medicine, University of Udine School of Medicine, General Hospital, Italy.
Abstract:
Although Streptococcus equinus has been isolated from the human bowel in an appreciable percentage of the adult general population, it has only rarely been described as a human pathogen. Our report describes the occurrence of S. equinus endocarditis in a patient who had no history of pre-existing heart disease, but who showed evidence of a late-stage pulmonary histiocytosis X. Endocarditis resolved promptly after antibiotic treatment, but required aortic valve substitution. Abnormalities of the immune system that have been demonstrated in patients with histiocytosis X could explain the occurrence of endocarditis in this patient.
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