肝脏恶性纤维组织细胞瘤影像学表现  

Imaging features of hepatic malignant fibrous histiocytoma

作　　者：陈玉芳[1] 杨永波[1] 程红岩[1] 

机构地区：[1]第二军医大学附属东方肝胆外科医院放射科,上海200438

出　　处：《实用放射学杂志》2012年第10期1565-1568,共4页Journal of Practical Radiology

摘　　要：目的探讨肝脏恶性纤维组织细胞瘤（MFH）的影像学特点，以提高影像诊断的准确率。方法回顾性分析14例经手术病理证实的肝脏MFH患者的临床资料及影像资料。7例行CT检查，7例行MRI检查。结果14例中有肝内转移3例，肝外转移6例。影像学表现：6例边界清楚，1例瘤周见低密度影环绕，7例边界模糊呈浸润性生长。CT平扫或MRI检查13例呈混杂密度或信号，有不同程度的出血坏死，1例呈均匀信号。动态增强扫描8例延迟期强化；5例延迟期无强化，1例无强化。强化形态具有多样性，2例肿瘤血管显影，4例呈花瓣样，1例呈分隔带样强化。结论肝脏MFH具有一定的影像学特征，对诊断有重要价值。Objective To study the imaging characteristics of hepatic malignant fibrous histiocytoma （MFH）, so that to improve the knowlege of this tumor. Methods Fourteen cases of MFH proven by pathology were examined by means of CT （n=7） or MRI （ n= 7）. The clinical and imaging data were retrospectively analysed. Results The patients with intra-and extra-hepatic metastases in 3 and 6 were found. 6 tumors had clear borders, one of them was around by low density, 7 loci were apparently invasive with un- clear border. 13 tumor manifested mix-low density （low or high signal intensity）compared with surrounding liver parenchyma at plain CT scan or MRI scan, there were hemorrhage and necrosis in different degree, and one lesion was homogeneous signal intensity on MR images. After administration of contrast medium, the tumors showed peripheral and irregular enhancement, 8 of them were manifested delayed enhancement but 5 of them, 1 had no enhancement at all, 2 of them showed tumor vessels, 4 tumors enhanced as petals, one showed as a cystic tumor and there were separators in the solid part of tumor. Conclusion Imaging findings of MFH are of certain charactertics, which are of significant value in diagnosing this tumor.

关 键 词：肝脏 恶性纤维组织细胞瘤 计算机体层成像 磁共振成像 

分 类 号：R735.7[医药卫生—肿瘤] R814.42[医药卫生—临床医学]