title: A case of primary leiomyoma of the liver in a patient without evidence of immunosuppression.
abstract: A 31-year-old Japanese male was admitted to our hospital for investigation of an asymptomatic nodular lesion of the liver detected by abdominal ultrasonography (US) during a routine medical examination. Computed tomography (CT) revealed a single, hypovascular mass 35 mm in diameter, within the left lobe of the liver. The tumor demonstrated hypointensity on T1-weighted, and hyperintensity on T2-weighted magnetic resonance (MR) imaging. Hematological and biochemical investigations were normal. There were no abnormalities of the gastrointestinal or urinary tracts. A left lateral segmentectomy of the liver was performed. Pathological examination of the nodule revealed a primary leiomyoma of the liver, with positive immunohistochemical staining for vimentin and desmin antigens. Primary leiomyoma of the liver is rare, with the majority of cases associated with immunodeficiency disorders. This patient had no evidence of any underlying disease. Primary leiomyoma of the liver should be considered when a nodular lesion is found in a patient without evidence of viral hepatitis.
authors.affiliation: Division of Gastroenterology and Hepatology, Musashino Red Cross Hospital, 1-26-1, Kyonan-cho, Musashino-shi, 180-8610, Tokyo, Japan
authors.forename: Nobuhiko
authors.initials: N
authors.lastname: Kanazawa
authors.forename: Namiki
authors.initials: N
authors.lastname: Izumi
authors.forename: Kaoru
authors.initials: K
authors.lastname: Tsuchiya
authors.forename: Kaoru
authors.initials: K
authors.lastname: Sakurai
authors.forename: Kosei
authors.initials: K
authors.lastname: Hamano
authors.forename: Jun
authors.initials: J
authors.lastname: Itakura
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Asahina
authors.forename: Osamu
authors.initials: O
authors.lastname: Noguchi
authors.forename: Masakatsu
authors.initials: M
authors.lastname: Uchihara
authors.forename: Shozo
authors.initials: S
authors.lastname: Miyake
authors.forename: Naoto
authors.initials: N
authors.lastname: Miyakawa
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Kawachi
authors.forename: Hidetoshi
authors.initials: H
authors.lastname: Shiotsu
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Taki
authors.forename: Yoshiro
authors.initials: Y
authors.lastname: Himeno
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Enomoto
authors.forename: Mamoru
authors.initials: M
authors.lastname: Watanabe
authors.forename: Takahiro
authors.initials: T
authors.lastname: Sakai