안면마비와 동반된 1과 1/2 증후군

• 영문명: One and a Half Syndrome with Facial Palsy: Eight and a Half Syndrome
• 발행기관: 대한검안학회
• 저자명: 염명인(Myeong In Yeom) 김수진(Soo Jin Kim)
• 간행물 정보: 『Annals of optometry and contact lens』Vol.14 No.4, 236~240쪽, 전체 5쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2015.12.30

영문 초록

Purpose: We report a rare case of eight and a half syndrome after pons infarction. Case summary: An 80 year old woman had a sudden onset of dizziness, horizontal diplopia after wake-up. She had bilateral limited movement into left gaze, in right gaze there was an adduction deficit in the left eye and abducting nystagmus in the right eye. In primary position, there was slight exophoria at distance increasing in right gaze. Vertical ocular movements were normal and ptosis was absent. vestibular-ocular reflex was absent and convergence was relatively spared. Pupils were equal in size and normally reactive to light and near stimulus. She had left sided facial palsy including left side flattening of the nasolavial fold and absent forehead wrinkling. A Diffusion-weighted magnetic resonance imaging scan obtained and demonstrated a well-defined focus of increased signal character localized to the left paramedian aspect of the dorsal pontine tegmentum, just ventral to the fourth ventricle. 5 months after the onset of the symptoms, the patient showed complete recovery of her ocular movements in all gaze but still remained facial palsy. Conclusions: One-and-a half syndrome is caused by a single unilateral lesion of the paramedian pontine reticular formation or the abducens nucleus, with interruption of medial longitudinal fasciculus. When this lesion involves the nucleus and faciculus of facial nerve, thus called eight-and-a-half syndrome.

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키워드

Eight and a half syndrome Facial palsy One and a half syndrome Pontine infarction