Hello, Gliosis. Gliosis is a nonspecific reactive change of glial cells in response to damage to the central nervous system (CNS). In most cases, gliosis involves the proliferation or hypertrophy of several different types of glial cells, including astrocytes, microglia, and oligodendrocytes. In most cases, gliosis involves the proliferation or hypertrophy of several different types of glial cells, including astrocytes, microglia, and oligodendrocytes. Gliosis is a non-specific response of several types of glial cells due to an injury or trauma to the brain or the central nervous system (CNS). It involves the process of formation of a scar in the brain where the injury or trauma occurred. The scar formation is the result of the rapid proliferation of glial cells in the affected part of the central nervous system. No specific treatment has been suggested for gliosis in particular. There is a therapeutic approach that aims at minimizing the proliferation of astrocytes in the system. The treatment of gliosis is mainly to treat the underlying cause of the trauma or injury that triggered it in the first place. Your CT is unremarkable. Don t worry. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr AJEET SINGH, General & Family Physician