Infections of the urinary tract are rarely caused by anaerobic bacteri
a. We report a case of prostatic gangrene due to Actinomyces meyeri an
d Arachnia propionica. This leads to look for unusual bacterial etiolo
gy when a prostatitis worsens in spite of a treatment with quinolones.
Moreover, we wonder if the administration of non-steroidal anti-infla
mmatory agents during the course of the disease may explain the spread
of the initial prostatitis.