The health hazard ofthe chromium compounds was mainly manifested in nose, eliciting fester, ulcer, perforationofnasalseptum.
铬化合物对人体危害的主要表现在鼻部，可致鼻中隔糜烂、溃疡、穿孔。
2
Conclusion Mending theperforationofnasalseptum by shifting the mucoperiosteal flap and perpendicular plate of the ethmoid bone under nasal endoscope is an effective method.
结论鼻内镜下双侧黏软骨(骨)膜瓣移位加筛骨垂直板是治疗鼻中隔穿孔的理想方法。
3
Objective: To exploring the effect ofthe manner for mending theperforationofnasalseptum by shifting the valve cohering the nasal bone through the way of moving down the nasal endoscope.