gliosis


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gliosis

[glī′ō·səs]
(medicine)
Proliferation of neuroglia in the brain or spinal cord, either as a replacement process or in response to a low-grade inflammation.
References in periodicals archive ?
The activated glia and elevated cytokines contribute to seizure-related hippocampal pathology such as neuronal death, reactive gliosis, and mossy fiber sprouting (33,34,35,36).
Hematoxylin-eosin staining of hippocampal sections from tree shrew revealed no apparent histopathology in blank and saline animals, but gliosis in treated animals (Fig.
D) Neonate 6: white matter with lymphocytic perivascular cuffing and severe gliosis (original magnification x40).
Atrophic changes with more or less extended gliosis areas occur after inflammatory changes.
MRI revealed areas of chronic infarcts with associated early encephalomalacia changes and gliosis in left frontal region and left basal ganglia (fig-1).
The findings in the brain included focal minimal parasagittal and parietal pachygyria, glioneuronal heterotopias, neuronal migrational abnormalities, hypomyelination of central white matter, and mineralizing lenticulostriate vasculopathy with focal gliosis in basal ganglia and thalamus.
4,7) Microscopically, the loss of neuronal cells, gliosis and atypical neurofibrillary tangles leads to macroscopic atrophy of the pre-frontal cortex, basal ganglia, cerebellum, mid-brain and to a lesser degree the spinal cord.
Microscopic pathology abnormalities were limited to the brain, including microglial nodules and gliosis, parenchymal microcalcification, and neuronal and glial cell degeneration and necrosis.
Magnetic resonance imaging examination revealed a volume loss of the left frontal lobe with a gliosis of subcortical and deep frontal white matter and consequent widening of the extracerebral cerebrospinal fluid (CSF) spaces and the frontal horn of the left lateral ventricle (Figure 1A).
En la evaluacion histopatologica del cerebro se encontro hiperplasia de celulas endoteliales, congestion circulatoria en arteriolas, gliosis y edema intersticial.
On histologic examination, all 3 doves had moderate to severe meningoencephalitis characterized by large numbers of plasma cells, lymphocytes, and macrophages with gliosis and astrocytosis.