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Imaging Findings of Solitary Fibrous Tumor in the Head and Neck Region
Author(s): 
Pages: 1810-1814
Year: Issue:  12
Journal: Journal of Clinical Radiology

Keyword:  Solitary fibrous tumoursTumours of head and neck regionX-ray computedMagnetic resonance imaging;
Abstract: 目的 探讨头颈部孤立性纤维瘤(SFT)的影像学特征,提高对本病罕见部位的认识.方法 回顾性分析经手术病理证实的8例头颈部SFT的影像表现.术前行CT检查者5例,4例行增强扫描;行MRI检查者4例,均行增强扫描.其中1例同时行MRI与CT检查.结果 (1)8例头颈部SFT中,海绵窦区-鞍旁1例,甲状腺1例,椎管内2例,翼腭窝2例,颌下1例,颈部1例.肿瘤直径1.4~6.8 cm,呈圆形或卵圆形7例,浅分叶1例.边界清楚8例.(2)5例CT平扫密度均匀,未见囊变、出血、坏死及钙化.1例周围骨质破坏.(3) MRI平扫T1WI 4例肿瘤主体呈等信号,1例见少许出血灶.3例肿瘤T2WI呈等低信号,1例高低混杂信号,1例等信号.1例少许囊变坏死灶.1例周围少许水肿.1例DWI高低混杂信号.(4)增强扫描,3例病灶动脉期不均匀强化,5例均匀强化,4例见迂曲管影,T2 WI低信号区也呈明显强化;静脉期渐进性均匀强化.结论 头颈部SFT影像表现具有一定的特点,T2WI信号更为典型,当肿瘤T2WI信号混杂,与DWI信号相对应,且T2WI低信号区明显强化,有利于诊断SFT.
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