硬纤维瘤MRI的诊断价值

林炳权; 许乙凯; 李华雨; 曹晶

中国临床医学影像杂志 ›› 2009, Vol. 20 ›› Issue (10) : 740-742.

论著

硬纤维瘤MRI的诊断价值

林炳权1，许乙凯1，李华雨2，曹晶1

作者信息 +

The value of MRI in the diagnosis of desmoid tumor

LIN Bing-quan1, XU Yi-kai1, LI Hua-yu2, CAO Jing1

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文章历史 +

摘要

目的：通过回顾性分析硬纤维瘤部位、形状、边界、T1WI和T2WI信号强度、均匀性、增强效果等征象，总结硬纤维瘤的MRI表现。方法：收集经手术病理证实硬纤维瘤8例MRI资料，与组织病理学进行对照分析。MRI平扫采用常规T1WI、T2WI，4例使用STIR序列扫描，其中7例行增强扫描。结果：①6例发生于臀部，1例发生于右侧胸壁，1例发生于左股骨周围软组织内；②硬纤维瘤形状大小不一，7例形态不规则，1例为椭圆形；③6例瘤体与周围软组织分界不清，2例边界清楚；④与肌肉信号相比，T1WI上6例病灶呈等信号，2例稍低信号；T2WI上4例高信号，4例稍高信号，但均低于脂肪，且其内信号不均。4例行STIR扫描呈高信号。7例增强扫描中，2例病灶明显均匀强化，5例不均强化。结论：硬纤维瘤在MRI表现上有一定的规律性，对大多数病例进行定性诊断是可能的。

Abstract

Objective: To summarize MRI manifestation of desmoid tumor and to investigate the fundamental histo-pathology. MRI finding of desmoid tumor including location, shape, margin, signal intensity on T1WI and T2WI, homogeneity of signal, and enhancement were analyzed retrospectively in this study. Methods: Eight cases of desmoid tumor proved by surgery were enrolled. MRI manifestations were comparatively studied with histopathologic findings. T1 and T2 sequence were used in non-contrast scan, while STIR sequence were performed in 4 cases and enhanced scan in 7 cases. Results: ①Six cases were located in haunch, 1 case was in right chest wall and 1 case in the soft tissue around left femoral bone; ②Desmoid tumor’s size was various, the shape of 7 cases was irregular, 1 case was elliptical; ③The margin in six cases was indistinct with soft tissue around the tumor. The margin in 1 case was well defined; ④Compare to the signal intensity of muscle, 6 cases were isointense and 2 cases were slightly hypointese on T1WI. On T2WI 4 cases were hyperintense and 4 cases were slightly hyperintense but all of their signal intensity was lower than that of fat and the interior was inhomogeneous. Four cases which used STIR appeared hyperintense. Two cases were homogeneously enhanced and 5 cases were inhomogeneously enhanced. Conclusion: There are certain regularities of desmoid tumor on MRI, and these are helpful in determining the nature of the tumor.

导出引用

林炳权;许乙凯;李华雨;曹晶. 硬纤维瘤MRI的诊断价值[J]. 中国临床医学影像杂志. 2009, 20(10): 740-742

LIN Bing-quan;XU Yi-kai;LI Hua-yu;CAO Jing. The value of MRI in the diagnosis of desmoid tumor[J]. Journal of China Clinic Medical Imaging. 2009, 20(10): 740-742

中图分类号： Ｒ730.262 Ｒ445.2