A 51-year-old woman was admitted to our hospital for the evaluation of an asymptomatic hepatic mass detected incidentally during a health checkup. Routine laboratory values, including tumour markers and serological tests for the hepatitis B and hepatitis C virus, were negative. Computed tomography (CT) examination demonstrated a 7 x 5 cm well-circumscribed, oval-shaped mass showing exophytic growth from segment 4 to the adjacent gallbladder fossa (Fig. 1A). During a tri-phasic CTscan, the mass showed strongly enhancing hyper-attenuation compared with liver parenchyma, from the arterial phase to the delayed phase imaging (Fig. 1B). Surgical exploration revealed a whitish tumour that protruded from segment 4 and was attached to the neighbouring liver tissue by a short pedicle. Grossly, the tumour was firm, well demarcated and revealed a whorled cut surface (Fig. 1C). Histological findings were compatible with a solitary fibrous tumour (SFT) of the liver (Fig. 1D).
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机译：一名51岁的妇女因健康检查期间偶然发现的无症状肝肿块而入院。常规实验室值，包括肿瘤标志物和乙型肝炎和丙型肝炎病毒的血清学检测，均为阴性。计算机体层摄影术（CT）检查显示有一个7 x 5 cm界限清楚的椭圆形肿块，显示从第4段到邻近的胆囊窝的外生性生长（图1A）。在三相CT扫描期间，与肝实质相比，从动脉期到延迟期成像，肿块均显示出强烈增强的超衰减（图1B）。手术探查发现发白的肿瘤从第4节突出，并通过短蒂附着在邻近的肝组织上。大体上，该肿瘤牢固，分界良好，并显示出切面呈螺旋状（图1C）。组织学发现与肝脏孤立性纤维性肿瘤（SFT）相容（图1D）。
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