Inflammation of the ependyma, the membrane lining the brain's fluid-filled spaces, usually caused by infection.
From 'ependyma' plus the medical suffix '-itis' (meaning 'inflammation of'), following the standard pattern used in medical terminology to describe inflamed tissues.
When bacteria or viruses infect the brain's lining, it can cause ependymitis, which is serious because it affects the very tissue that protects your brain's delicate plumbing system!
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