What condition does encephalitis describe?

Encephalitis specifically refers to the inflammation of the brain. This condition can be caused by various factors, including viral infections, bacterial infections, or autoimmune responses. The inflammation can lead to a range of symptoms, such as headache, fever, confusion, and seizures, depending on the severity and the underlying cause. Understanding this term is essential in the medical field, as it highlights the critical nature of brain health and the potential consequences of inflammation in this vital organ. The other conditions mentioned in the choices focus on different areas or types of inflammation and do not apply to encephalitis.