Pneumatization and proliferation of middle turbinate and bent uncinate process were the most common anatomic variation in the diseased group.

• 病变侧上颌窦口周围的中鼻甲气化、增生及钩突偏曲、筛泡骨性增生等解剖结构异常的发生率明显高于对照侧（P＜0.；05）。