Cytomegalovirus (CMV) enteritis (or colitis) is generally diagnosed in immunocompromised patients in association with human immunodeficiency virus infection as well as in recipients of solid organ or hematopoietic stem cell transplant. CMV enteritis has been reported only sporadically in immunocompetent individuals. We encountered a 76-year-old woman who developed CMV enteritis without any previously identified immunocompromised states. An extensive literature review of 33 cases of CMV enteritis or colitis diagnosed in immunocompetent individuals, including the present case, revealed that the median age of the patients was 68, the accompanying symptoms were diarrhea (76%), abdominal pain (52%), and hematochezia or melena (27%), and that the outcome was generally favorable, including resolution without any treatment in 24% of the patients. CMV enteritis should be recognized more widely as a disease entity not only in immunocompromised patients but also in immunocompetent individuals, especially in elderly populations.
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