In 186 completely closed cases , a vestige of the synchondrosis was observed as an irregular white line in 91 cases. In 13 cases of them, some part of the sphenoid sinus extended into the occipital bone beyond the vestige.
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美
- 蝶枕軟骨結合完全閉合的 186例中 ,可見(jiàn)不規則白線(xiàn)殘跡的 91例 ,其中 13例蝶竇超越部分白線(xiàn)累及枕骨 ;
