Glossary term:


The suffix “itis” means inflamed (as in appendicitis). Arachnoiditis therefore means inflammation of the arachnoid tissue surrounding the brain or the spinal cord. Such inflammation can result from infection or from blood “spilt” inside the head or spine, following injury or surgery. The term arachnoiditis is often mis-used to refer to scar tissue that forms, within the subarachnoid channels, as a result of previous arachnoid inflammation.