胸膜外孤立性纤维性肿瘤MSCT与MRI征象

发布时间：2018-06-16 06:37

本文选题：孤立性纤维性肿瘤 + 体层摄影术　；参考：《中国医学计算机成像杂志》2015年03期

【摘要】：目的:探讨胸膜外孤立性纤维性肿瘤(ESFT)的MSCT与MRI影像诊断。方法:分析12例ESFT的CT与MRI资料,5例行CT平扫和增强,4例MR平扫和增强,1例行CT平扫及MR平扫和增强,2例MR平扫。结果:腹盆部5例,头面部5例,四肢2例;单发11例,双发1例,共13处病灶;瘤体呈类圆形5例,不规则形8例;边缘清楚6例,边缘呈浸润或模糊状7例;实性10例,囊实性3例。CT平扫呈均匀及混杂密度各3例,5例增强后动脉期均匀强化2例,不均匀强化3例,强化呈斑片状和线条状,静脉期进行性增强或减低,3例见钙化及坏死。MR平扫肿瘤实质部分4例T1WI等信号,T2WI等及稍高信号;4例T1WI等、低信号,T2WI等、低或稍高混杂信号;增强后肿瘤实质明显强化。结论:ESFT影像学有一定特征,典型征象为孤立的明显进行性强化的软组织肿瘤,当肿瘤实质区T1WI或T2WI出现等低信号且增强明显强化时应考虑SFT诊断可能。
[Abstract]:Objective: to investigate the MSCT and MRI diagnosis of extrapleural solitary fibrous tumor (ESFT). Methods: Ct and MRI findings of 12 patients with ESFT were analyzed. Plain CT scan in 5 cases, Mr plain scan in 4 cases and contrast-enhanced Mr scan in 1 case, Mr plain scan and enhanced Mr scan in 2 cases. Results: there were 5 cases of abdomen and pelvis, 5 cases of head and face, 2 cases of extremities, 11 cases of single and 1 case of double lesion, 5 cases of round shape, 8 cases of irregular shape, 6 cases of clear margin, 7 cases of infiltration or blur, 10 cases of solid. Ct scan showed homogeneous and mixed density in 3 cases and homogeneous enhancement in 2 cases and uneven enhancement in 3 cases in the posterior arterial phase. The enhancement was patchy and linear. Calcification and necrosis were seen in 3 cases with progressive enhancement or decrease in venous phase. The tumor parenchyma on Mr plain scan was found in 4 cases with T1WI isointensity and 4 cases with slightly high signal intensity on T1WI, low signal intensity on T2WI, low or slightly high mixed signal intensity, and enhancement of tumor parenchyma. Conclusion the typical imaging features of ESFT are solitary and progressive enhanced soft tissue tumors. The diagnosis of SFT should be considered when the tumor parenchyma appears on T1WI or T2WI.
【作者单位】：江苏省徐州医学院附属医院影像科;江苏省连云港市第二人民医院影像科;
【分类号】：R734.3;R730.44;R445.2

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