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Möbius syndrome (also spelled Moebius) is an extremely rare congenital neurological disorder which is characterized by facial paralysis and the inability to move the eyes from side to side. Most people with Möbius syndrome are born with complete facial paralysis and cannot close their eyes or form facial expressions. Limb and chest wall abnormalities sometimes occur with the syndrome. People with Möbius syndrome have normal intelligence, although their lack of facial expression is sometimes incorrectly taken to be due to dullness or unfriendliness. It is named for Paul Julius Möbius, a neurologist who first described the syndrome in 1888. ==Signs and symptoms== People with Möbius syndrome are born with facial paralysis and the inability to move their eyes laterally. Often, the upper lip is retracted due to muscle shrinkage. Occasionally, the cranial nerves V and VIII are affected.〔 If cranial nerve VIII is affected, the person experiences hearing loss. Other symptoms that sometimes occur with Möbius syndrome are: * Limb abnormalities—clubbed feet, missing fingers or toes * Chest-wall abnormalities (Poland Syndrome) * Crossed eyes (strabismus) * Difficulty in breathing and/or in swallowing * Corneal erosion resulting from difficulty in blinking Children with Möbius syndrome may have delayed speech because of paralysis of muscles that move the lips, soft palate, and tongue root. However, with speech therapy, most people with Möbius syndrome can develop understandable speech. Möbius syndrome has been associated with increased occurrence of the symptoms of autism. However, some children with Möbius syndrome are mistakenly labeled as mentally retarded or autistic because of their expressionless faces, strabismus, and frequent drooling. 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「Möbius syndrome」の詳細全文を読む スポンサード リンク
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