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在胎36週,体重1,812gで生まれた女児に頭部CTで脳梁欠損が生後1日目に発見された。Aicardi症候群との鑑別のため,生後37日に眼科を受診した。角膜径は右10mm,左8mmで小眼球であり,透光体に混濁はなかった。左眼に乳頭欠損があり,両眼に境界が明瞭な多数の網脈絡膜病変があり,本症候群に特有なchorioretinal lacunaeに類似した。生後6か月に点頭てんかんが発症した。脳波で高振幅徐波と棘波が無秩序にあるhypsarrythmiaがあり,Aicardi症候群の診断が確定した。小眼球で点頭てんかんまたは脳梁欠損がある場合には,本症候群が鑑別診断の対象になる。
A girl infant was born after gestation of 36 weeks with birthweight of 1,812 g. Agenesis of corpus callosum was detected by computed tomography at 1 day of birth. She was examained ophthalmologically on day 37. The corneal diameter was 10 mm right and 8 mm left. The left eye was microphthalmaic. The optical media was clear. Coloboma of optic disc was found in the left eye. Both eyes showed chorioretinal lacunae suggestive of Aicardi syndrome. At 6 months of age,the baby developed infantile spasms. Electroencephalography showed hypsarrhythmia,leading to the diagnosis of Aicardi syndrome. This syndrome is a possibility when an infant shows microphthalmos,infantile spasm,or agenesis of corpus callosum.
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