Terminal ileitis associated with cytomegalovirus and the acquired immune deficiency syndrome.

A 41-yr-old homosexual male had cytomegalovirus infection localized to the terminal ileum as his initial and sole evident opportunistic infection due to the acquired immune deficiency syndrome. The symptoms, signs, roentgenographic findings, and appearance at surgery were suggestive of Crohn's disease. The pathogen was identified only by microscopic examination of bowel resected during a second laparotomy. The terminal ileum had profound mucosal ulceration and transmural fibrosis without granulomas. This novel report suggests that cytomegalovirus infection should be carefully searched for in immunocompromised patients presenting with clinical features suggesting Crohn's disease.