Gliosis - Dictionary Of Medical Terms

Gliosis - Dictionary Of Medical Terms
Gliosis - Dictionary Of Medical Terms

Table of contents:

Gliosis

Gliosis [gliosis; Greek glia - glue + -ōsis (word-form. suffix) - disease] - growth of astrocytic neuroglia, accompanied by hyperproduction of glial fibers, is a process of its replacement hyperplasia (an increase in the number of structural elements) in response to the death of nervous tissue.

Types of gliosis:

  • anisomorphic (anisomorpha) - characterized by a chaotic arrangement of growing glial fibers;
  • fibrous (fibrosa) - in which the formation of glial fibers is more pronounced in comparison with the cellular elements of glia;
  • diffuse (diffusa) - spreading to large areas of the spinal cord or brain;
  • isomorphic (isomorpha) - characterized by the relatively correct placement of growing glial fibers;
  • marginal (marginalis) - expressed mainly in the intrathecal areas of the brain;
  • perivascular (perivascularis; Greek peri - around + Latin vasculum, diminutive of vas - vessel) - located around sclerosed and / or inflamed vessels;
  • subependymal (subependymalis; Latin sub - under + Greek ependyma - outerwear) - located in the areas of the brain located under the ependyma.

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