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MRI scans subsequently revealed signs of gliosis, a side effect of neurological injury, which can lead to scarring in the brain.

Burda, J. E. & Sofroniew, M. V. Reactive gliosis and the multicellular response to CNS damage and disease.

In the cerebellar vermis there was marked granule cell atrophy and often widespread loss of Purkinje cells accompanied by severe Bergmann gliosis, while cerebellar hemispherical cortex showed only patchy loss of Purkinje cells and no significant granule cell loss.

The brain, normal macroscopically, proved microscopically to show, in all areas examined, superficial gliosis.

One area in left superior frontal gyrus showed superficial gliosis.