Colitis ulcerosa asociada a la infección por citomegalovirus durante la gestación

Ulcerative colitis is an inflammatory bowel disease characterized by intermittent flares of disease activity. Exacerbations have been associated with cytomegalovirus superinfection. We report the case of a pregnant woman who experienced a severe flare, producing toxic megacolon. Cytomegalovirus infection during this flare was subsequently confirmed. Maternofetal transmission of the virus occurred and the fetus showed the lesions characteristic of this infection.