The anatomic variations of different types and their relationship with the chronic frontal sinusitis were discovered.
发现不同类型的解剖变异与慢性炎症的关系。
Objective to study the anatomic features of frontal drainage system on ct scan in chronic frontal sinusitis, and to evaluate its clinical value.
目的探讨慢性额窦炎额窦引流系统CT解剖特征及临床价值。
Methods 50 cases(70 sides)who underwent tran- nasal endoscopic frontal surgey for chronic frontal sinusitis were divided into two groups randomly.
方法慢性额窦炎行功能性鼻内镜额窦手术患者50例（70侧）。
No difference of chronic frontal sinusitis number in various pneumatized types was found, but the difference of chronic anterior ethmoid sinusitis and maxillary sinusitis number was significant.
不同中鼻甲气化类型之间慢性额窦炎的数量差异无统计学意义，慢性前组筛窦炎及上颌窦炎的数量差异有统计学意义。
No difference of chronic frontal sinusitis number in various pneumatized types was found, but the difference of chronic anterior ethmoid sinusitis and maxillary sinusitis number was significant.
不同中鼻甲气化类型之间慢性额窦炎的数量差异无统计学意义，慢性前组筛窦炎及上颌窦炎的数量差异有统计学意义。
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