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Myelitis involves the infection or the inflammation of the white matter or gray matter of the spinal cord which is a part of central nervous system that acts as a bridge between the brain and the rest of the body. During an inflammatory response in the spinal cord, the myelin and axon may be damaged causing symptoms such as paralysis and sensory loss. Myelitis is classified to several categories depending on the area or the cause of the lesion; however, people often refer to any inflammatory attack on the spinal cord as transverse myelitis. ==Types of Myelitis== Myelitis lesions usually occur in a narrow region but can be spread and affect many areas. *Poliomyelitis:〔Kelly, H. (2006). Evidence for a causal association between oral polio vaccine and transverse myelitis: A case history and review of the Literature. Journal Of Paediatrics And Child Health, 42(4), 155-159.〕 disease caused by viral infection in the gray matter with symptoms of muscle paralysis or weakness *Leukomyelitis: lesions in the white matter *Transverse Myelitis: caused by axonal demyelination encompassing both sides of the spinal cord *Meningococcal Myelitis (or meningomyelitis): lesions occurring in the region of meninges and the spinal cord 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Myelitis」の詳細全文を読む スポンサード リンク
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