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例1 男,17岁。1985年12月14日入院。右耳鸣伴听力下降1年余,近3个月右耳听力明显减退,视物成双,头晕偶有恶心並吞咽发呛及右面麻木。检查:视乳头边界清,静脉略粗,右外展差,双眼粗大水平眼震,右耳听力差,Weber 试验偏左,Rinne 试验气导>骨导,咽反射差,悬雍垂偏左。CT 扫描见右中后颅凹及颞顶部硬膜外占位病变。12月23日在全麻下行右颞枕部开颅,见右中颅凹底硬膜外近岩骨处有一大囊,抽出咖啡样囊液60余 ml、
Example 1 male, 17 years old. December 14, 1985 admission. Right tinnitus with hearing loss for more than 1 year, nearly 3 months significantly reduced right ear hearing, depending on the material in pairs, dizziness and nausea and swallowing occasional numbness choking and right numbness. Check: optic disc border clear, slightly thick veins, right abduction poor, nystagmus eyes coarse level, right ear hearing loss, Weber test left, Rinne test air conduction> bone conduction, poor pharyngeal reflex, left uvula left. CT scan see the right middle posterior fossa and temporal top epidural space lesions. On December 23 under general anesthesia right temporal occiput craniotomy, see the right middle cranial concave epidural near the petrous bone has a large capsule, out of coffee-like cyst fluid more than 60 ml,