RESULTS The CTfeathures of ossifying fibroma inparanasal sinus were similar torotundity or unregular single high density lump in sinus, partarea of low density, integrity bone involucrum around it.

• 结果鼻窦骨化纤维瘤的CT表现为鼻窦内单发类圆形或不规则性高密度肿块,部分区域可见低密度影,其周边出现完整骨性包壳,呈膨胀性生长,周边组织受压变形但分界清楚。