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KMID : 1001920110500060535
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Journal of Korean Neurosurgical Society
2011 Volume.50 No. 6 p.535 ~ p.537
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Moyamoya Syndrome Precipitated by Cranial Irradiation for Craniopharyngioma in Children
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Lee Hyun-Seok
Seol Ho-Jun
Kong Doo-Sik
Shin Hyung-Jin
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Abstract
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Recently, combination of surgery and radiation therapy (RT) has been recommended in the treatment of craniopharyngioma. RT could be associated with late complications, including vasculopathy. We report two cases of the moyamoya syndrome seen in children with craniopharyngioma who received RT after surgical resection. Thirty-five patients in pediatric age with craniopharyngioma were surgically treated. Fifteen out of 35 patients underwent surgical resection followed by RT or gamma knife surgery. Two of the 15 were found to have symptoms of transient ischemic attack and were diagnosed as moyamoya syndrome through the cerebral angiography. Age at RT was 4 and 13 years, respectively. The latent period for development of the moyamoya syndrome was 27 months and 3 years, respectively, after RT. The RT dose of both patients was 54 Gy. These two patients received bilateral encephaloduroarteriosynangiosis procedures. We report here these two cases of radiation-induced moyamoya syndrome in pediatric craniopharyngioma. Pediatric patients with craniopharyngioma who received RT should be reminded, during follow-up, about the risk of development of the moyamoya syndrome.
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KEYWORD
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Moyamoya syndrome, Craniopharyngioma, Radiation, Vasculopathy
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