Asymptomatic colonic carcinoma revealed by investigation of Streptococcus bovis bacteremia.

A case of bacteremia in a patient with a prosthetic aortic valve is reported. The identification of streptococcus bovis as the causative organism and its known association with gastrointestinal disease led to investigations which revealed carcinoma of the sigmoid colon in an asymptomatic patient. The association of colonic lesions with S. bovis bacteremia is briefly reviewed.