Final answer:
Meningoencephalitis is a medical condition characterized by inflammation of both the brain and the meninges, presenting a combination of symptoms from both meningitis and encephalitis that can lead to severe and life-threatening consequences if not treated promptly.
Step-by-step explanation:
When both the brain and the meninges are inflamed, the condition is referred to as meningoencephalitis. This serious medical condition occurs when there is inflammation in the meninges, known as meningitis, as well as inflammation in the brain tissue, known as encephalitis. Meningitis can present symptoms such as severe headache, fever, photophobia (sensitivity to light), stiff neck, convulsions, and confusion. Encephalitis may cause additional symptoms including lethargy, seizures, and personality changes. Both conditions can be life-threatening, leading to blindness, deafness, coma, and even death, especially if not treated promptly and effectively. It's essential to seek medical attention if someone is showing signs of meningoencephalitis, as quick diagnosis and treatment are critical for the best outcomes.