目的：研究传统上颌窦根治术后上颌窦局部骨质增生与瘢痕形成的病理改变情况，并讨论其临床意义。
AIM: To study the pathological changes of maxillary sinus in the patients after conventional maxillary radical treatment, Caldwell-Luc operation, and discuss its clinic significance.
目的了解瘢痕疙瘩遗传学改变的特征。
Objective To identify the genetic alteration in human keloid.
对后期治疗没有帮助，即耳道的慢性改变，如瘢痕组织或钙化。
It will not help the later, chronic changes in the ear canal such as scar tissue or calcification.
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