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腹壁韧带样瘤的CT与MRI征象分析

Chinese Journal of CT and MRI(2012)

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Abstract
目的 回顾性分析腹壁韧带样型纤维瘤病的CT和MRI表现,提高CT和MRI对该病的认识和诊断水平.方法 回顾性分析经临床手术病理证实5例腹壁韧带样型纤维瘤病的临床、病理、CT和MRI特征.5例中2例行CT平扫和增强扫描;2例行MRI平扫及增强扫描;1例行CT、MRI平扫及增强扫描检查.分析其CT和MRI表现特征并与病理结果对照.结果 5例腹壁韧带样瘤均发生于前腹壁腹直肌内,4例位于左侧腹直肌内,1例位于右侧.CT、MRI表现:边界多不清,呈浸润性生长,无包膜;坏死或钙化少见;密度、信号可均匀或不均匀.注射造影剂后,4例较均匀强化,1例不均匀强化.CT表现缺乏特征性,而MRI扫描可见T2WI稍高信号及致密胶原纤维所致的低信号,具有一定特征性.结论 CT增强扫描检查可满足病变的检出与定位的要求;而MRI的优势在于其表现表现较具有特征性,对腹壁韧带样瘤病的术前诊断、鉴别诊断具有重要价值.
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Key words
MRI,CT,diagnosis,abdominal wall desmoid tumor,enhancement
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