Severe cytomegalovirus enterocolitis in an immunocompetent infant.

Gastrointestinal cytomegalovirus infection is a common opportunistic infection in immunocompromised patients. It is a rare cause of enterocolitis in immunocompetent hosts. We present a case of severe cytomegalovirus enterocolitis causing intractable diarrhea in a previously healthy infant. The child was successfully treated with intravenous ganciclovir.