Tuberculous meningitis in the elderly
Tuberculous meningitis, also known as tuberculous meningitis, is a non-purulent inflammation caused by the invasion of the meninges by Mycobacterium tuberculosis. It is part of systemic disseminated miliary tuberculosis and can also be secondary to bacteremia caused by tuberculous lesions in the lungs, lymph nodes, bones or urinary system. In addition, Mycobacterium tuberculosis can also directly break into the skull or spinal canal from tuberculous lesions in the skull or spine to cause tuberculous meningitis. Currently, more than half of the patients are adults. Cases have also been reported in the elderly. Three-quarters of adult tuberculous meningitis have adult primary lesions. The mortality rate of tuberculous meningitis is between 15% and 30%. If diagnosis and treatment are not timely, it can cause death or leave serious sequelae.