Sclerosing hepatocellular carcinoma: Radiologic findings
Sclerosing hepatocellular carcinoma: Radiologic findings
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硬化性肝细胞癌：放射学结果
DOI：
10.1007/bf00201779
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发表时间：
1993
影响因子：
--
通讯作者：
Mutsumasa Takahashi
中科院分区：
文献类型：
--
作者：
Y. Yamashita;Z. Fan;Hiroaki Yamamoto;T. Matsukawa;A. Arakawa;T. Miyazaki;M. Harada;Mutsumasa Takahashi
我们对7例硬化性肝细胞癌（HCC）的影像学表现进行了评价。计算机断层扫描（CT）显示低信号肿块伴明显延迟增强。肿瘤虽清晰，但未见肿瘤包膜。4例患者出现局灶性萎缩。超声显示等回声至高回声肿块，无边缘。血管造影显示肿瘤血管突出，染色时间延长。4例患者出现动脉闭塞。在磁共振（MR）上，所有肿瘤在t1加权像上呈低信号，在t2加权像上呈高信号。在动态MR研究中，持续到延迟期的显著对比增强似乎是硬化性HCC的特征。HCC高危患者存在结构均匀、血管扩张、强化时间延长、肿瘤包膜缺失、局灶性萎缩的肝脏肿瘤时，应考虑硬化性HCC。
The radiologic findings of seven patients with sclerosing hepatocellular carcinoma (HCC), an unusual subtype of HCC, were evaluated. Computed tomography (CT) demonstrated a hypointense mass with marked delayed contrast enhancement. Although the tumor was well-defined, the tumor capsule was not seen. Focal atrophy was seen in four patients. Ultrasound (US) showed an isoechoic to hyperechoic mass without a rim. Angiography revealed prominent tumor vessels and prolonged stains in all cases. Arterial encasement was seen in four patients. On magnetic resonance (MR) imaging, all tumors were hypointense on T1-weighted images and hyperintense on T2-weighted images. On dynamic MR study, remarkable contrast enhancement, which continued to the delayed phase, seemed to be characteristic for sclerosing HCC. In the presence of liver tumors with homogeneous architecture, hypervascularity, prolonged enhancement, absence of tumor capsule, and focal atrophy in high-risk patients of HCC, sclerosing HCC should be considered.