目的：通过新生骨骨质结构和骨密度分析观察犬颧骨牵张成骨效果。
AIM: To observe the effect of distraction osteogenesis of zygoma based on the bony structure and bony density of new bone formation.
对肿瘤范围、密度、形态边缘和骨质情况进行分析。
Extent, density, shape, edge and bone changes of the tumor were analyzed.
材料和方法：回顾性分析34例鼻腔淋巴瘤的CT表现，对肿瘤范围、密度、形态边缘和骨质情况进行分析。
Materials and method: 34 cases of lymphoma in nasal cavity were analyzed according to CT manifestations with regard to size, density, shape and margin of the tumor and bone changes.
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