骨性穹隆由一对鼻骨和上颌骨额突构成，好似一个支架，支撑着鼻上部和上外侧软骨。
Consisting of the paired nasal bones and the ascending frontal process of the maxilla, the vault ACTS as a cantilever, supporting the upper nose and the upper lateral cartilages.
上颌骨额突由梨状孔和泪嵴向头侧方向伸出，与额骨和鼻骨相接。
The maxillary processes extend in a cephalad direction form the piriform aperture to the lacrimal crest, uniting with the frontal and nasal bones.
目的：报告一个因额窦与筛窦鼻窦炎及骨膜下脓疡而引起的突眼症病例。
Purpose: to report a case of exophthalmos related to frontal and ethmoid sinusitis with subperiosteal abscess.
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