颅内高压@最常见的脑疝有两类：①小脑幕切迹疝（tentorialnotch），幕上的脑组织（颞叶的海马及钩回）通过小脑幕切迹挤向幕下，又称海马钩回疝；②枕骨大孔疝（tonsillarhernia），幕下的小脑扁桃体及延髓经枕骨大孔疝入椎管内，又称小脑扁桃体疝。
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