血管周围间隙PPT演示课件.ppt

;血管周围间隙 Virchow-Robin Space;;血管周围间隙简介;血管周围间隙解剖及生理;血管周围间隙解剖及生理;血管周围间隙的解剖;8;Photomicrograph (×20; HE stain) of a coronal section through the anterior perforated substance shows two arteries (straight arrows) with surrounding VR spaces(curved arrows);血管周围间隙的解剖;血管周围间隙的解剖;血管周围间隙的发生率;血管周围间隙扩大的机制;血管周围间隙的MRI表现;血管周围间隙的MRI表现;Ⅰ型;Bilateral type I VR spaces in a 6-year-old boy;;;Ⅲ 型血管周围间隙;;;不典型的血管周围间隙;巨大的Ⅲ型血管周围间隙;巨大的Ⅱ、Ⅰ型血管周围间隙;;鉴别诊断;Ⅱ型血管周围间隙;;;鉴别诊断;;;鉴别诊断;;;鉴别诊断;;鉴别诊断;;鉴别诊断;;;;VRS扩大与神经疾病;VRS扩大与神经疾病 ;;Hurler syndrome (mucopolysaccharidosis type I) in a 2-year-old boy with typical external features of this syndrome. (a) shows dilated VR spaces in both hemispheres (arrowheads). (b) shows increased signal intensity in the surrounding brain parenchyma (arrows); this finding indicates that the spaces are not normally dilated VR spaces. There is also increased CSF space frontally;PACNS;Migraine;Macrocephaly;MS;总 结