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Hepatic malignant fibrous histiocytoma of imaging characteristics
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF RADIOLOGY
- Issue:
- 8
- DOI:
- 10.3760/j.issn:1005-1201.2005.08.016
- Key Word:
- 肝肿瘤;间叶瘤;体层摄影术,X线计算机;磁共振成像;血管造影术
Abstract： 目的提高对肝脏恶性纤维组织细胞瘤影像学表现的认识.方法回顾性分析4例经手术或活检病理证实的肝脏恶性纤维组织细胞瘤的影像学特点,其中包括CT 4例, MRI 2例,肝动脉DSA 1例.结果 4例肿瘤均位于肝右叶,肿瘤呈浸润性生长,与周围肝实质分界不清,3例侵犯肝包膜.4例CT平扫均表现为不规则形低密度灶,CT值28～36 HU,其中2例可见片状稍高密度出血灶;增强扫描动脉期肿瘤实质呈轻度强化,CT值52～70 HU,静脉期呈中度强化,CT值75 ～98 HU,病灶内部中央坏死显著.2例表现为T1WI低信号,与肌肉信号相当,其中1例病灶内见片状等高信号影,T2WI为较高信号.1例DSA表现为肝动脉分支走行呈"抱球状",实质期可见不规则肿瘤染色.结论肝脏恶性纤维组织细胞瘤的影像学表现主要为肿瘤向外浸润明显,边界不清,肿瘤内部坏死显著,实质部分所占比例很小,瘤内出血常见.
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