Abscess colon diverticular disease produced for Actinomyces israelii in a renal transplant recipient

: We present the case of a 53 years old man with a cadaveric kidney transplant under cyclosporin A and prednisolone therapy. Clinical transplant course was uneventful until 15 years after transplant, when he was admitted in our hospital with fever and a perirenal mass of unknown origin. Cyclosporin A was removed and a left sided colon was carried out and a abscess colon diverticular disease produced for Actinomyces israelii was diagnosed. The development was satisfactory after medical and surgical treatment.