室管膜瘤37例临床病理分析

目的：讨论室管膜瘤病理形态特征。方法：对我们在外检中遇到的37例堂管膜瘤临床和形态学特征作回顾性分析。结果：37例中男18例、女19例，平均发病年龄223岁。肿瘤在显微镜下最显著的形态特点为瘤细胞围绕血管排列成血管心菊形团.在血管周围显示无核的空景区（94.6％）及在肿瘤内可见豹皮状元核区（973％）。部分病例在肿瘤内可见室管膜裂隙（20.0％）。结论：室管膜瘤可发生于中枢神经系统的各个部位，起源于脑室管膜和脊髓中央管覆盖上皮细胞，病理分为乳头型、上皮型及多细胞型，还应与少技胶质细胞瘤相鉴别。

Clinicopathologic Analysis of 37 Cases of Ependymoma

Purpose: To investigate the clinicopathologic characteristic of ependymoma. Method : Thirty-seven cases of ependymoma were analysed retrospectively focused on clinic and morphologic characteristic. Results: Of these 37 cases. 18 cases were male, 19 cases were female and the average age was 22. 3 years. Microscoplcally, the most remarkble morphologic features were the tumor cells surrouding the vessels forming the rosettes with the halo area immediatly around the vessels without cell nuclei(94. 6%) and the area withont cell nuclei distributed in the tumors like the pattern of liopard skin (97. 3% ). There appeared sometimes also ependyma fissure (20. 3 % ). Conclusions: Ependymoma may ocurre in every part of central nervous system, and origin from ependyma and epithelium of spinal central canal. It can divide into three types, papillar type, epithelial type and multicelluar type, and should be distinguished with oligodendroglioma.