has participant quality brain inflammation AE AE severity G1 AE severity G2 AE severity G3 AE severity G4 AE severity G5 arachnoiditis AE 10003074 CTCAE:E12591 SJ, YH, MW NCIt:C37913 WEB: http://en.wikipedia.org/wiki/Arachnoiditis a brain disorder AE that causes inflammation of the arachnoid, one of the membranes known as meninges that surround and protect the nerves of the central nervous system, including the brain and spinal cord.