title: Cecal vanishing tumor associated with cytomegalovirus infection in an immunocompetent elderly adult.
abstract: Gastrointestinal involvement in cytomegalovirus (CMV) infection is well documented among immunocompromised patients and is also observed in immunocompetent individuals. The presentation of this infection can sometimes mimic those of other diseases, thus making accurate diagnosis difficult. We herein report a rare case of an immunocompetent elderly adult with gastrointestinal CMV infection that presented as a vanishing tumor at the cecum. A 76-year old man initially presented with lower abdominal pain. Colonoscopy revealed a tumorous lesion with irregular ulceration observed at the ileocecal valve. Histological findings of a biopsy specimen revealed intranuclear inclusions which were positive for CMV on immunohistochemical staining. However, this tumorous lesion disappeared within 7 wk from the initial hospital visit without any further treatment. Inflammatory pseudotumors associated with CMV infection should be considered as a differential diagnosis of tumorous lesions in the colon, even in immunocompetent adults.
authors.affiliation: Shinsuke Kawasaki, Satoshi Osawa, Ken Sugimoto, Takahiro Uotani, Masafumi Nishino, Takanori Yamada, Mutsuhiro Ikuma, First Department of Medicine, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan.
authors.forename: Shinsuke
authors.initials: S
authors.lastname: Kawasaki
authors.forename: Satoshi
authors.initials: S
authors.lastname: Osawa
authors.forename: Ken
authors.initials: K
authors.lastname: Sugimoto
authors.forename: Takahiro
authors.initials: T
authors.lastname: Uotani
authors.forename: Masafumi
authors.initials: M
authors.lastname: Nishino
authors.forename: Takanori
authors.initials: T
authors.lastname: Yamada
authors.forename: Mitsushige
authors.initials: M
authors.lastname: Sugimoto
authors.forename: Takahisa
authors.initials: T
authors.lastname: Furuta
authors.forename: Mutsuhiro
authors.initials: M
authors.lastname: Ikuma