肝脏少见肿瘤的CT表现

目的 分析5例不同组织类型的肝脏少见肿瘤的CT表现,以提高对这些肿瘤的识别能力.方法 经病理证实的肝脏少见肿瘤5例,均行CT平扫和对比增强检查,所用对比剂为欧乃派克300 mgI/ml.结果 肝脏血管周上皮样细胞瘤1例,平扫呈低密度,增强扫描动脉期病灶明显强化,静脉期持续强化,延迟扫描呈等密度;血管肉瘤2例,为肝内境界...

CT findings of uncommon tumors in the liver

Objective To improve the CT diagnostic level of uncommon hepatic tumor. Methods CT scan was performed in 5 cases with pathologically proved uncommon tumor of the liver. All 5 cases were performed CT and enhanced conspicuous after injection of contrastmedia Omnipaque 300 mgI/ ml. Results These uncommon tumor of the liver had a variety of presentations. 1 case with perivascular epithelioid cell tumor demonstrated as hypodensity on CT and enhanced conspicuous after injection of contrastmedia, the tumor cystic wall did not enhanced. 2 cases of hepatic angiosarcoma demonstrated as well-defined hypoattenuation lesions without cirrhosis. 1 case of malignant fibrous histiocytoma displayed as a single large hypoattenuation lesion within hyperdense septations and pseudocapsule, hepatic artery displayed winding, dilatation within enhanced scanning. 1 case of adult mesenchymal hamartoma of the liver demonstrated as large tumor with cystic degeneration. Conclusion Uncommon hepatic tumors with different pathologic nature have different CT findings, and sometimes with some similar signs. Typical CT findings, coupled with clinical information may lead to a correct diagnosis.