[Recurrent infective endocarditis. A case report].

We report the case of a 63-year old patient presenting five infective endocarditis (IE) in a 13-years period, with different types of streptococcus. No entrance way had been found until the last relapse occurring on mitro-aortic bioprosthesis. This recurrence leads to the diagnosis of caecal adenocarcinoma by coloscopy, preceded and guided by PET scanner. It seems to be the initial entrance way which had been unrecognized because of its small size and its particular location, that is very difficult to observe by coloscopy. Recurrent streptococcus IE are rare and severe. When a gut or colic tumor is suspected, PET scan seems to be helpful in etiological survey.