论文部分内容阅读
上颌窦鳞状上皮癌被发现时常常已处于晚期，治疗困难。因此需要寻找除细胞分化程度和ＴＮＭ分类以外的能与预后有关的因素。核仁组成中心区（ＮＯＲｓ）是ＤＮＡ编码核糖体ＲＮＡ的环节，具有控制转录核糖体ＲＮＡ基因的基础功能，但其确切的功能还不清楚。该作者对２５例上颌?
Maxillary sinus squamous cell carcinoma is often found in advanced stage, treatment difficulties. It is therefore necessary to find prognostic factors other than the degree of cell differentiation and TNM classification. NORs are DNA-encoding ribosomal RNAs and have the basic function of controlling the transcription of ribosomal RNA genes, but its exact function is still unclear. The author of 25 cases of maxillary?