Abstract
We report the case of a 56-year-old man who died of perforation of the caecum-ascending colon secondary to diverticulitis. His presenting symptoms were intermittent abdominal pain, vomiting and anorexia. We performed a gastroendoscopic examination and found acute erosive and hemorrhagic gastroduodenitis. Intravenous hyperalimentation and medication were initiated. One week after the onset, he showed symptoms of peritonitis and paralytic ileus. Because of his mental retardation, we encountered difficulties in diagnosing his condition. We emphasize that the prognosis of diverticulitis of the colon in patients undergoing hemodialysis is grave.