What is the medical term for the inflammation of the brain?

The correct term for inflammation of the brain is "encephalitis." This condition specifically refers to the inflammation of the encephalon, which is the major part of the central nervous system, encompassing the brain. Infections, autoimmune diseases, and certain types of allergic reactions can lead to this condition, making it a vital term in neurology and infectious disease fields.

Cerebritis is a less commonly used term that can refer to inflammation of the brain but is not as precise or widely accepted as encephalitis. Neurosis refers to a range of mental health disorders characterized by anxiety or distress, rather than a physical inflammation. Gastritis pertains to the inflammation of the stomach lining, and thus, it is unrelated to the brain. This further reinforces that encephalitis is the most accurate descriptor for brain inflammation.