The expression of the Apoptosis Inhibitor Livin and Cyclin D1 had positive correlation in the basal cell carcinoma of nasus externus and indicated there being a feedback regulation mechanism in them and they both jointly contributed to the formation of the basal cell carcinoma of nasus externus. 凋亡抑制因子Livin和cyClinD1在外鼻基底细胞癌中的表达呈正相关,提示二者之间存在反馈调节机制,在外鼻基底细胞癌的发生、发展过程中起协同作用。