RESUMO
Cytomegalovirus (CMV) is a global virus with a high prevalence that usually manifests in immunocompromised patients, with significant morbidity and mortality. Though fairly common in immunocompetent patients admitted in the intensive care units, the infection is usually subclinical. Healthy individuals either have a subclinical course or exhibit a mild mononucleosis-like syndrome. Due to this, little attention has been given to morbidity and mortality that CMV infection may lead to in immunocompetent patients. We report a case of a 55-year-old immunocompetent female with no significant history who was admitted to our medical service with pericarditis, complicated by a right pulmonary embolism. Infectious workup revealed CMV as the cause for the presenting symptoms.