Objective: To explore a rare anatomic malformation of ethmoid and its clinical features, as well as an effective way of treatment.
Method: Four cases from 2000-2009 of the first affiliated hospital of china medical university were studied according to the symptom,CT scanning, pathological examination and treatment process, respectively.
Result: Ethmoid bone gasification complicated with infection resulted in a rare anatomic and pathological disorder. The symptom and treatment were largely dependent on the size of gasification and degree of infection.
Conclusion: CT Scanning plays a critical role in the diagnosis. In most case,a surgical treatment under endoscope is generally applied as a suitable way for clinical therapy. The regular reexamination is recommended for preventing recurrence.