A group of ethmoidal cellules were formed among the lacrimalbone, frontal bone and nasal bone.
泪骨，额骨和鼻骨之间围成一个狭长的筛鼻甲窦（部）。
2
Results: Most of the lacrimal fossa (85. 60%) consist of lacrimal and maxillary bones; 0nly a few (14.40%) lacrimalbone or maxillary bone.
结果：泪囊窝多数(85.60%)由泪骨与上颌骨构成，少数(14.40%)由泪骨或上颌骨构成。
3
Shape and margin: Most tumors had an irregular shape with obscure margin, infiltrating around the structures of the eyeball, lacrimal gland, extraocular muscle, optic nerve and (or) bone.