[Meningiomas: morphologic and ultrastructural characteristics of psammoma bodies].

Archivos de neurobiologia Pub Date : 1992-11-01
M Cerdá Nicolás
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Abstract

In this study we analyzed the morphologic and ultrastructural characteristics of the psammoma bodies in ten meningiomas of different histologic subtypes, characterizing the components of the psammoma body and the elements of the tumor, such as the capillaries and degenerative cells that have been classically considered as initiators of the formation of these calcareous is structures. The discussion considers the diagnostic interest of psammoma bodies in central nervous system tumors, as well as its histogenesis. The different points of view explaining biological mineralization in other territories of the organism are analyzed, as well as the formation of psammoma bodies, comparing the morphologic data obtained in this study. It is concluded that the mineralization of the psammoma bodies is induced principally by the collagen fibers synthesized by the meningocytes and that the form of mineralization is spherical and growth is radial, controlled by the tumoral cells.

[脑膜瘤:沙粒体的形态学和超微结构特征]。
在这项研究中,我们分析了10种不同组织学亚型脑膜瘤的沙质体的形态和超微结构特征,表征了沙质体的成分和肿瘤的成分,如毛细血管和退行性细胞,这些传统上被认为是这些钙质结构形成的启动器。讨论了沙粒小体在中枢神经系统肿瘤中的诊断价值及其组织发生。分析了解释生物矿化在其他领域的不同观点,以及沙粒体的形成,并比较了本研究获得的形态学数据。结论:沙粒小体矿化主要由脑膜细胞合成的胶原纤维诱导,矿化呈球形,生长呈放射状,受肿瘤细胞控制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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