Cytomegalovirus (CMV) is a prevalent pathogen, with 98~100% of Korean
adults showing prior exposure by
serology. A primary
infection, such as CMV
infectious mononucleosis, is very rare. CMV
infectious mononucleosis often presents an initial diagnostic problem.
Patients are often hospitalized with a wide variety of clinical
diagnoses including
fever of unknown origin without
pharyngitis and
lymphadenopathy. CMV gastrointestinal
infections are rare in previously immunocompetent individuals. The most common sites involved are the
colon and
rectum, although lesions of the
stomach have also been described. It is unusual to see CMV
infectious mononucleosis and CMV gastrointestinal
infection in the same
patient. Our
patient received symptomatic
treatment and fully recovered. We present a case of CMV
infectious mononucleosis with
gastric ulcers in a previously healthy
adult.