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目的观察纤维板层型肝癌(FLHCC)的影像学表现。方法11例FLHCC均经病理证实。做超声波(US)检查10例,CT扫描11例,MRI8例,血管造影9例。结果US显示肿瘤呈高回声4例,混杂回声6例,4例有大小不一的囊性区。DopplerUS提示肿瘤实性部分血供丰富。CT显示肿瘤单发9例,多个结节融合2例,平扫均为低密度,7例肿块中心区见放射状更低密度区,病理检查为致密胶原瘢痕,4例见点状钙化。增强扫描7例,早期均见明显强化,瘢痕样结构无强化。11例均无肝硬化表现。MRIT1加权像肿瘤呈低信号,T2加权像呈不均匀高信号,6例肿块内可见放射状瘢痕结构,T1及T2加权像均为低信号。增强扫描5例,4例明显强化,瘢痕区无强化。血管造影显示肿瘤血管丰富、实质期明显浓染4例,动脉期肿块周边区呈结节状浓染、酷似血管瘤3例,肿瘤区血管分支稀少2例,未显示门静脉瘤栓及动静脉瘘征象。结论青年患者肝脏肿块内存在瘢痕、钙化、且无肝硬化背景时应考虑为FLHCC。
Objective To observe the imaging features of fibroplasia (FL-HCC). Methods 11 cases of FL HCC were confirmed by pathology. Ultrasonography (US) was performed in 10 cases, CT scan in 11 cases, MRI in 8 cases, and angiography in 9 cases. Results US showed 4 cases of hyperechoic tumors, 6 cases of mixed echoes, and 4 cases of cystic areas of different sizes. DopplerUS indicates that the solid part of the tumor is rich in blood supply. CT showed 9 cases of single tumor, multiple nodules fusion in 2 cases, plain scan were low density, 7 cases of the central area of the tumor to see the radial lower density area, pathological examination for the dense collagen scar, 4 cases of point-like calcification. Seven cases of enhanced scans were seen in the early stages, and scar-like structures were not enhanced. All 11 cases had no cirrhosis. MRIT1-weighted tumors showed low signal, T2-weighted images showed inhomogeneous hyperintensity, 6 cases showed radial scar structure, T1 and T2-weighted images were low signal. Enhanced scans were performed in 5 cases, and 4 cases were markedly intensified. There was no enhancement in the scar area. Angiography showed that there were 4 tumors with rich blood vessels and significant staining in the parenchymal phase. The peripheral area of the arterial phase showed nodular hyperinfection, which resembled hemangiomas in 3 cases. The blood vessel branches in the tumor area were scarce in 2 cases. The portal vein tumor embolus and arteriovenous vein were not shown.瘘 icon. Conclusion FL-HCC should be considered when there are scars, calcifications, and no cirrhosis background in the hepatic mass of young patients.