雑誌文献を検索します。書籍を検索する際には「書籍検索」を選択してください。

検索

書誌情報 詳細検索 by 医中誌

Japanese

Electron Microscopy of Meningothelal Meningioma Yoichi Ishida 1 , Sadao Kawai 1 , Shoichi Sato 1 , Takavuhi Takayanagi 1 , Junichi Kawafuchi 2 1Department of Pathology, School of Medicine, Gunma University 2Department of Surgery, School of Medicine, Gunma University pp.114-118
Published Date 1965/3/25
DOI https://doi.org/10.11477/mf.1431904160
  • Abstract
  • Look Inside

 Five meningiomas of meningothelial variety wereexamined with electron microscope. "Fite neoplastk-meningothelial cells appeared to he characterizedby their fine cellular details closely resemblingthose of arachnid cells and by complicated surfacespecialization. The nuclei were relatively regularin outline, containing occasionally inclusions. Thecytoplasm were pale and abundant, and most commonly found in the form of long irregular pseudopods or extensions which fit together and interdigitated with those of adjacent cells. They containedonly scant rihonucleoprotein granules and scatteredcytoplasmic organelles including vesicles. Occasional tumors were characterized by the abundanceof fine fibrils in the cytoplasm. The elongated cellswere found in areas encircling together formingcell whorls. In cases desmosomes were prominently evidenced at the margin of the cells. The finestructural features were even demonstrated in atumor classified as malignant type of meningioma.

 It is a question of interest whether the rneingioma cells do posess a fibroblastic or angioblasticactivity, In areas collagenous fibers were found. running between the cells. They appeared to blend. with the cell membrane, indicating the possibilityof fibroblastic activity of meningothelial tumor cells. A tumor examined showed a rich net work of vascular and intercellular spaces, which were seenenclosed by tumor cells with prominent attachmentplates. In areas where the light microscopy presented a pseudoxanthomatous appearance, tumor cellcytoplasms were filled with vacuoles, containingitmorphous materials of lipid in nature.


Copyright © 1965, Igaku-Shoin Ltd. All rights reserved.

基本情報

電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

関連文献

もっと見る

文献を共有