Intraoral pseudotumor of lower lip mucosa due to cytomegalovirus infection after bone marrow transplantation in a leukemia patient: A case report

Cytomegalovirus (CMV) commonly infects immunocompetent as well as immunocompromised hosts. The latter include recipients of organ transplants or immunosuppression therapy, and those with hematologic malignancies. The most common manifestation of a CMV infection of the gastrointestinal tract including the oral mucosa is ulceration. Up to now, there have been several reports of CMV infection in the oral mucosa resulting in mucosal ulceration. CMV infections producing a mass lesion as pseudotumoral in appearance have rarely been reported in the literature. There are a few reports of CMV pseudotumors in the head and neck. Here we report a case of intraoral pseudotumors caused by localized CMV infection in a patient who received a bone marrow transplantation (BMT). Although a lesion of this nature is rare, we must bear in mind the possibility of a CMV infection when we examine a patient who has received BMT with an oral mass-like lesion.