肝脏非特异性嗜酸性肉芽肿的影像学特征  

Imaging characteristics of hepatic eosinophilic granuloma

作　　者：丛振杰[1] 贺书杰[2] 董成功[3] 祁延芳[4] 

机构地区：[1]烟台市烟台山医院放射科,264025 [2]烟台市烟台山医院肝胆外科,264025 [3]烟台市烟台山医院病理科,264025 [4]烟台市毓璜顶医院影像科,264025

出　　处：《中华消化外科杂志》2013年第1期68-70,共3页Chinese Journal of Digestive Surgery

摘　　要：肝脏嗜酸性肉芽肿是由长期炎症引起肉芽肿形成继而发生。本文分析2008年7月至2012年4月烟台市烟台山医院和烟台市毓璜顶医院收治的2例肝脏非特异性嗜酸性肉芽肿患者的临床资料，并总结其影像学特征。实验室检查均提示患者外周血嗜酸性粒细胞增高，超声检查发现低回声肝脏包块，彩色多普勒检查无血流信号。CT检查示略低密度病灶，边界欠清晰，增强扫描示延迟期不均匀强化，病灶呈网格状改变。1例患者接受MRI检查，T1WI 扫描示病灶呈不规则略高信号，边缘欠清晰，其内见一斑片状低信号；T2WI扫描呈高信号，内见低信号分隔；DWI扫描呈明显高信号。熟悉肝脏非特异性嗜酸性肉芽肿的影像学特征，并结合外周血嗜酸性粒细胞增高，可以帮助临床医师作出正确诊断。Hepatic eosinophilic granuloma is a rare benign liver lesion, which results from granuloma formation due to chronic inflammation. Two patients were admitted to the Yantaishan Hospital and Yuhuangding Hospital from July 2008 to April 2012, respectively. The results of laboratory examination showed the elevation of peripheral blood eosinophils, and ultrasound examinations revealed lowecho masses in the liver and no blood flow was detected. The results of computed tomography showed hypoattenuation lesions with welldemarcated boundary. After intravenous administration of contrast angent, the lesions demostrated delayed heterogeneous enhancement with internal grid. The results of magnetic resonance imaging of 1 patient showed the lesion had slight hyperintensity to the surrounding liver parenchyma on T1weighted images, and slight high signal with low signal separation strip inside on fatsuppressed T2weighted images. An obvious high signal was detected in diffusion weighted imaging. Familiarity with the imaging characteristics and combination of the elevation of peripheral eosinophil can help surgeons to make a suggestive diagnosis.

关 键 词：肝脏疾病 嗜酸性肉芽肿 影像诊断 

分 类 号：R575[医药卫生—消化系统] R816[医药卫生—内科学] R44[医药卫生—临床医学]