| 脑膜瘤的透射电镜观察 |
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| 引用本文： | 罗深秋,张义勋. 脑膜瘤的透射电镜观察[J]. 南方医科大学学报, 1986, 0(1) |
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| 作者姓名： | 罗深秋 张义勋 |
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| 作者单位： | 第一军医大学中心实验室电子显微镜室(罗深秋)，第一军医大学病理解剖学教研室(张义勋) |
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| 摘 要： | 用透射电子显微镜(TEM)观察了6例脑膜肿瘤(脑膜皮瘤型3例、纤维型2例、过渡型1例)。瘤细胞的主要特征是胞质形成复杂的突超。突起中除含有丰富的线粒体外,尚可见到高尔基氏复合体、散在或成束的微丝。突起之间形成大量桥粒。脑膜瘤的这种上皮样结构解释了在光镜下和细胞学涂片上细胞不易分散的原因.根据透射电镜所见,本文认为上述三种脑膜瘤可能超原于蛛网膜颗粒的间皮样细胞,它们在超微结构上不易区别.
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| 关 键 词： | 脑膜肿瘤 脑膜瘤细胞胞质突起 桥粒 微丝 电子显微镜 |
Transmission electron microscopic observation of meningiomas |
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| Luo Shenqiu Chang Yixun. Transmission electron microscopic observation of meningiomas[J]. Journal of Southern Medical University, 1986, 0(1) |
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| Authors: | Luo Shenqiu Chang Yixun |
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| Affiliation: | Central Laboratory |
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| Abstract: | 6 meningiomas (3 meningotheliomatous, 2 fibrous, 1 transitional) were observed with transmission electron microscope ( TEM). The main feature of most tumor cells is that the cytoplasm forms conspicuous interdigitations from the cell surface. There are a lot of mitochondria, Golgi complexes and scattered or closely packed micro-filaments in the interdigitations.Many desmosomes were seen between the interdigitations. The epithelioid nature of the meningiomas may explain why the cells in samples of either the paraffin sections or the cytological smears are aggregated into a mass under light microscope and are difficult to scatter out.According to the ultrastructure, the three types of meningiomas described by the present works might originate from the mesothelioid cells of the arachnoid granulations. We did not find distinct differences in ultrastructure among them |
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| Keywords: | meningeal neoplasms cytoplasmic processes of meningiomasdesmosomes cytoplasmic filaments electron microscopy |
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