| Ultrastructural Study of Meningiomas |
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| 作者姓名： | 罗深秋 张义勋 |
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| 作者单位： | Electron Microscope Laboratory First Military Medical College，Guangzhou，Electron Microscope Laboratory，First Military Medical College，Guangzhou，Department of Pathology |
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| 摘 要： | 8 specimens of meningioma(4 meningotheliomatous,3 fibrousand 1 transitional)were observed with transmission electron micro-scope(TEM).The main feature of most tumor cells is that there aremany conspicuous interdigitations of cytoplasm protruding outfrom the cell surface.There are a lot of mitochondria,Golgi com-plexes and microfilaments which are closely packed or scatteredinside the interdigitations.Between the interdigitations,many des-mosomes are seen.The meningiomas have an epithelioid structure.which may explain why the tumors cells would not scatter outwhen the smear samples or histological sections are observed underlight microscope.The three types of meningiomas described inthe present work may mainly originate from epithelioid cells ofarachnoid granulations as inferred from the ultrastructure observed.We did not find any distinct differences in the ultrastructuresamong them.
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Ultrastructural Study of Meningiomas |
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| Luo Shenqio Chang Yixun Electron Microscope Laboratory,First Military Medical College,Guangzhou..Ultrastructural Study of Meningiomas[J].Journal of Medical Colleges of PLA(China),1986(3). |
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| Authors: | Luo Shenqio Chang Yixun Electron Microscope Laboratory First Military Medical College Guangzhou |
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| Abstract: | 8 specimens of meningioma(4 meningotheliomatous,3 fibrous and 1 transitional)were observed with transmission electron micro- scope(TEM).The main feature of most tumor cells is that there are many conspicuous interdigitations of cytoplasm protruding out from the cell surface.There are a lot of mitochondria,Golgi com- plexes and microfilaments which are closely packed or scattered inside the interdigitations.Between the interdigitations,many des- mosomes are seen.The meningiomas have an epithelioid structure. which may explain why the tumors cells would not scatter out when the smear samples or histological sections are observed under light microscope.The three types of meningiomas described in the present work may mainly originate from epithelioid cells of arachnoid granulations as inferred from the ultrastructure observed. We did not find any distinct differences in the ultrastructures among them. |
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| Keywords: | Meningiomas cytoplasmic processes of meningiomas desmosomes microfilaments |
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