Summary. Streptococcus bovis is relatively common cause of bacteremia and endocarditis, especially in older persons, or in patients that have some kind of chronic disease. These infections are frequently connected with malignant, potentially malignant, or benign colorectal neoplasia. Hematogenous dissemination of Streptococcus bovis could result with various clinical manifestations, namely purulent meningitis, brain abscess, osteomyelitis, spondylodiscitis, and many different kinds of infections in AIDS patients are reported. In this report, two patients hospitalized at the Departement of Infectious Diseases at the General Hospital »Dr. Josip Ben~evi}« in Slavonski Brod are presented. The first patient was addmited to the hospital  because of fever of unknown origin, and in his blood cultures, Streptococcus bovis was isolated. He was an older man, who had undergone prostatectomy due prostatic adenoma several years before. The other patient, previously completely healthy younger man, suffered purulent meningitis caused by the same microorganism. Colon endoscopy was performed in both patients and it revealed colon polyps. Histologically, in both cases, those were benign neoplasia. In Croatia, until this report, there have been no other reports about patients suffering systemic Streptococcus bovis infections. At the same time, this report describes Streptococcus bovis purulent meningitis in a previously healthy adult, which is also extremely rare in the medical literature. Since Streptococcus bovis infections are associated with colon carcinoma, it is imperative to perform colonoscopy in each patient suffering infection with this germ, and to consider him as a high risk patient for developing colon cancer.

Volumen: 7-8, 2006

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