7例横纹肌样脑膜瘤临床特征与MR表现分析

发布时间：2018-03-02 09:45

本文关键词： 横纹肌样脑膜瘤磁共振成像增强扫描扩散张量成像　出处：《临床放射学杂志》2017年12期 　论文类型：期刊论文

【摘要】：目的探讨横纹肌样脑膜瘤(RM)的MRI特征性表现及其临床特点。方法对7例(男3例,女4例)患者的临床资料及MRI表现进行回顾性分析,所有患者均经手术病理证实为RM。结果 7例RM中,2例位于鞍旁,1例位于额叶,1例位于颞叶,1例位于枕叶,1例位于左侧额部颅板内外,1例位于右侧侧脑室。7例RM中,6例为实性,1例为囊实性。6例实性病灶中,3例呈等T1、等T2信号,2例呈稍长T1、稍长T2信号,1例呈长T1、长T2信号;1例囊实性病变,实性部分呈等T1、等T2信号,囊性部分呈长T1、长T2信号。6例实性病灶DWI(b=1000 s/mm2)1例呈低信号,1例呈等信号,3例呈稍高信号,1例呈明显高信号;1例囊实性病灶DWI(b=1000 s/mm2)囊性部分呈低信号,实性部分呈稍高信号。1例实性病灶可见轻度瘤周水肿(水肿范围1 cm),1例囊实性病灶周围见轻度瘤周水肿,余均未见瘤周水肿。1例实性病灶可见局部骨质肥厚并骨质破坏。增强扫描2例实性病灶呈明显均匀强化;余4例实性病灶呈不均匀强化,中心可见相对低信号未强化区;1例囊实性病变囊性部分未见明显强化,实性部分呈明显不均匀强化。结论 RM的MR表现具有一定特征性,可伴有瘤周水肿,可发生囊变、坏死,也可伴有骨质破坏。
[Abstract]:Objective to investigate the MRI features and clinical features of rhabdomyoid meningioma (RM). Methods the clinical data and MRI findings of 7 patients (3 males and 4 females) were retrospectively analyzed. Results of the 7 cases of RM, 2 cases were located in the parasellar fossa, 1 case in the frontal lobe, 1 case in the temporal lobe, 1 case in the occipital lobe, 1 case in the left frontal plate, 1 case in the left frontal plate, 1 case in the right lateral ventricle, 1 case in the RM. In 6 cases of solid lesions, 1 case was solid lesions, 3 cases were iso-T _ 1, 2 cases were iso-T2 signal intensity, 1 case was long T _ 1, 1 case was long T _ 2 signal intensity, and 1 case was cystic solid lesion with long T _ 2 signal intensity, 2 cases with iso-T _ 2 signal intensity, 1 case with long T _ 2 signal intensity, and 1 case with long T _ 2 signal intensity. The solid part showed iso-T _ 1, iso-T _ 2 signal intensity, cystic part was long T _ 1, and long T _ 2 signal intensity was found in 6 cases of solid lesions with DWI(b=1000 s / mm ~ (2). Low signal intensity was found in 1 case of DWI(b=1000 s / m ~ (2) with low signal intensity, in 1 case with hyperintense signal intensity in 1 case, in 1 case with hyperintense signal intensity in 1 case, and in 1 case with DWI(b=1000 s / mm _ 2 cystic part of solid lesion. The solid part was slightly hyperintense in .1 cases with mild peritumoral edema (edema range 1 cm) and mild peritumoral edema in 1 case around the cystic solid lesion. In all cases, there was no edema around the tumor. 1 cases of solid lesions showed local bone hypertrophy and bone destruction, 2 cases showed obvious homogeneous enhancement, and 4 cases showed heterogeneous enhancement of solid lesions. There was no obvious enhancement in the cystic part and uneven enhancement in the solid part in 1 case with relatively low signal intensity unenhanced area. Conclusion the MRI findings of RM have some characteristics, which may be accompanied by edema around the tumor, cystic degeneration and necrosis. It can also be accompanied by bone destruction.
【作者单位】：郑州大学第一附属医院磁共振科;
【分类号】：R445.2;R739.45

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