PMC4802188_01
CT.. There is an irregular gallbladder mass about 90 mm in diameter with peripheral enhancement (arrows). The mass appears to invade the liver (segments 4 and 5) and the transverse colon.
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Computed tomography (CT) showed an irregular gallbladder mass about 90 mm in diameter with peripheral enhancement (Fig. 1).
MRI findings.. a: Low intensity mass on a T1-weighted image (arrow).. b: High intensity mass on a T2-weighted image (arrow).. c, d: Irregular gallbladder mass about 90 mm in diameter with peripheral gadolinium enhancement (arrows).
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The mass was low intensity on T1-weighted images and high intensity on T2-weighted images (Fig. 2), and it extended to involve the liver (segments 4 and 5) and the transverse colon.
Histopathological findings.. a. Moderately differentiated tubular adenocarcinom. b. Immunostaining of tumor cells was positive for G-CSF.. (a: HE x400, b: An immunohistochemistry with anti-G-CSF monoclonal antibodies x400)
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Tumor cells were positive for G-CSF by immunohistochemical staining (Fig. 3).