title: A case of a solitary Mycobacterium avium complex lesion of the liver.
abstract: A 70-year-old woman was admitted to our hospital on suspicion of liver tumor on regular abdominal ultrasonography. The abdominal ultrasonography identified a solitary, low-echoic lesion measuring 17mm in diameter in S7. This lesion was not enhanced in any phase of contrast-enhanced computed tomography (CT), and thus we performed a liver biopsy. Histopathological examination revealed a caseating granuloma. The chest CT showed pulmonary nodules, and Mycobacterium intracellulare was cultured from the bronchoalveolar lavage fluid. We diagnosed the individual with a Mycobacterium avium complex infection, and suspected that this was the cause of the solitary liver lesion.
authors.affiliation: Department of Gastroenterology and Hepatology, Mie University Hospital.
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Tamai
authors.forename: Hideaki
authors.initials: H
authors.lastname: Tanaka
authors.forename: Kyoko
authors.initials: K
authors.lastname: Yoshikawa
authors.forename: Ryosuke
authors.initials: R
authors.lastname: Sugimoto
authors.forename: Koyo
authors.initials: K
authors.lastname: Higashitani
authors.forename: Rumi
authors.initials: R
authors.lastname: Morooka
authors.forename: Norihiko
authors.initials: N
authors.lastname: Yamamoto
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Hasegawa
authors.forename: Motoh
authors.initials: M
authors.lastname: Iwasa
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Takei
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008107:Liver Diseases / Q000000981:diagnostic imaging*; D015269:Mycobacterium avium Complex; D015270:Mycobacterium avium-intracellulare Infection / Q000000981:diagnostic imaging*; D000072078:Positron Emission Tomography Computed Tomography; D014463:Ultrasonography