RESUMEN
Although cytomegalovirus (CMV) infection of the gastrointestinal tract can occur in persons with normal immune function, it almost exclusively affects the immunocompromised host such as transplant recipients and AIDS patients, and it can cause significant clinical illness. CMV remains the single most important pathogen that affects solid organ transplant recipients. While CMV can affect any segment of the gastrointestinal tract, the colon is the most common site of infection, and this is followed by the upper gastrointestinal tract. However, CMV infection associated with simultaneous gastric and colonic ulcer is very rare and this has been reported in only one case, and a case of simultaneous gastric, duodenal and colonic ulcer associated with CMV infection has not yet been reported in Korea. We report here on a case of simultaneous gastric, duodenal and colonic ulcer associated with CMV infection that showed the characteristic histologic findings seen for CMV infection in renal transplant recipients.