摘要
目的分析婴幼儿期SturgeWeber 综合征脑部CT特点。方法 将2012年1 月-2017年12月在我院确诊并有完整CT影 像学资料的63例Sturge-Weber综合征婴幼 儿列为回顾性分析对象,通过脑部CT影像 资料对婴幼儿SturgeWeber综合征受累部 位、病变脑叶密度、病变脑叶信号密度、 脑灰白质分界、脉络丛、脑萎缩形态及硬 膜下是否有出血或积液现象进行分析。结 果 63例患儿颅内均有典型钙化表现,主 要沿脑回、脑沟走行,34例呈曲线样、19 例呈条带状,10例呈迂曲条管状,其中颞 顶叶9例、顶叶10例、枕顶叶33例、额顶 11例,27例钙化灶区与颜面血管瘤同侧, 主要累及皮层;均可见局部脑沟、脑池及 蛛网膜下腔不同程度增宽;软脑膜血管瘤 同侧有不同程度的脑萎缩表现,表现为脑 室扩大、脑沟增宽、病变同侧大脑半球范 围大于钙化区,55例为局限性脑萎缩,其 余为广泛性脑萎缩;行增强CT扫描时可见 沿皮层表面走行的线样、脑回样强化,且 脑回状强化范围明显超出钙化灶范围,经 CTA可见畸形静脉影;31例CT增强扫描影 像可见侧脑室脉络丛明显增粗,且范围扩 大,强化明显;CT骨窗显示41例患儿与患 侧钙化脑组织毗邻的颅骨板障明显增厚; 32例可见血管畸形同侧硬膜下积液,均 无出血表现。结论 婴幼儿期SturgeWeber 综合征脑部CT以颅内局部钙化、软脑膜 血管瘤、局部脑萎缩为典型表现,提示 SturgeWeber综合征可能性,或可结合临 床表现、MRI等影像手段予以进一步确 诊。
Objective To analyze thebrain CT features of infantile Sturge-Weber syndrome. Methods Sixty-three infantswith Sturge-Weber syndrome diagnosed in the hospital from January 2012 to December 2017 and with complete CT imaging data were enrolled in the retrospective analysis. The involved sites, density of affected lobes, signal density of lobs, boundary of brain gray matter, choroid plexus, shape of brain atrophy, the presence of subdural hemorrhage or effusion were analyzed through brain CT imaging data of infantile Sturge-Weber syndrome. Results There were typical calcifications in brains of 63 children, mainly distributed along the gyrus and sulcus. 34 cases were curveshaped, 19 cases were ribbon shaped and 10 cases were curved tube shaped. Among them, there were 10 cases in the temporoparietal lobe, 33 cases in occipital parietal lobe and 11 cases in frontoparietal region. 27 cases of calcified foci were on the same side of the facial hemangioma, mainly involving the cortex. There was different degrees of widening in local sulcus, cisternand subarachnoid space. There was different degrees of brain atrophy on the same side of soft meningeal hemangiomas, manifesting as enlargement of the ventricles, widening of the sulci and cerebral hemisphere on the same side of lesions larger than calcified areas. 55 cases were focal brain atrophy, and the rest cases were extensive brain atrophy. Enhanced CT scanning showed line-like and gyrus-like enhancement on the surface of the cortex, and the extent of gyrus-likeenhancement was significantly larger than that of the calcified range. CTA showed abnormal venous shadow. CT enhanced scan of 31 cases showed obvious thickening of the lateral cerebral choroid plexus, and the scope expanded, with obvious enhancement. CT bone window showed obvious thickening of the skull adjacent to ipsilateral calcified brain tissues in 41 cases and subdural effusion on the same side of vascular malformations in 32 cases, without bleeding. Conclusion The typical CT features of infantile Sturge-Weber syndrome include intracranial local calcification, cerebral pia mater hemangioma and local brain atrophy, suggesting that CT combined with clinical manifestations and MRI can further confirm the diagnosis of Sturge-Weber syndrome.
【关键词】婴幼儿期;SturgeWeber综合征;脑部CT
【中图分类号】R742
【文献标识码】A
【DOI】10.3969/j.issn.1672-5131.2018.11.007
前言
Sturge-Weber综合征是以颜面皮肤血管瘤及软脑膜血管瘤为 典型病理特征的神经皮肤异常病症[1],这一概念于19世纪60年代由 Schrimer首次提出,至19世纪70年代末William Allen Sturge进行了 更为全面的阐述,并在之后研究中证实Sturge-Weber综合征与脑-三叉 神经血管瘤病、颜面血管畸形、同侧脑血管异常间的关联性[2];又被 称之为脑颜面血管瘤疾病,属先天性神经皮肤综合征,主要表现为软 脑膜血管瘤、三叉神经分布面部区域血管痔,并以脑膜血管瘤为病理 特征,多限于脑软膜,可见大脑表层有细小扩散静脉交织[3]。因临床 相对罕见、多为散发,其发病机制至今尚不明确,当前多认为其或与 少量染色体突变、环境、产前因素等有关[4],既往报道还指出典型的 Sturge-Weber综合征病患的血管瘤与胚胎发育异常有密切关系,或为 原始脉管在发育的前三个月中退化、成熟发生异常有关[5]。也因疾病 相对罕见,当前针对Sturge-Weber综合征的CT影像学研究仍以病例分 析为主,且病例数较少,为进一步补充Sturge-Weber综合征CT特点, 现将我院近年来收治的63例婴幼儿Sturge-Weber综合征患儿脑部CT资 料进行回顾性分析,具体报道如下。
中国CT和MRI杂志
第16卷, 第 11 期
2018年11月
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