粘液乳头状室管膜瘤临床病理及免疫组化研究

Clinicopathological and Immunohistochemical Study of Myxopapillary Ependymoma (MPE)

7例粘液乳头状室管膜瘤均发生于脊髓马尾部．镜下特殊图象是以血管和纤维组织为中心的乳头，血管为丰富的粘掖基质所围绕并被复一层或多层的立方形瘤细胞．免疫组化检查显示神经胶质酸性蛋白、S－100蛋白及波形蛋白阳性．

Seven cases of MPE were founded in the region of the cauda equina of spinal cord. This tumor is uncommon Microscopically, the distinctive feature wes the presence of papillae centered on blood vessels and fibrous tissue. surrounded by an abundant mucinous stroma and covered by Qne or more layers of cuboidsl tumor cells. Six cases of them were studied by immunohistochendcal examination The results show.ed positive immunostaining of GFAP, S-100 protein and vimentin The prognosis is generally good.