involucrum

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.

结果鼻窦骨化的CT表现为鼻窦内单发类圆形或不规则高密度肿块,部分区域可见低密度影,其边出现完整骨包壳,呈膨胀生长,边组织受压变形但分界清楚。