To the editor: A case we have recently seen supports conclusions in papers (1, 2) on the association of Streptococcus bovis with disease of the colon and subacute bacterial endocarditis. It also indicates the value of colonoscopy as a diagnostic tool when other studies are negative, and we wish to call this to the attention of other clinicians.
A 62-year-old factory worker presented with fever, malaise, and fatigue of 3 weeks' duration. He had a grade II/VI systolic ejection murmur. His hemoglobin level was 5.0 g/dl; a blood smear showed severe microcytosis. Occult blood was present in the stool. Several