Methods: Expression of PCNA,p16,Rb and bcl-2 protein using immunohistochemical LSAB technique and apoptosis using TUNEL method were determined in 51 cases of GCT.

• 方法：用免疫组化法检测了51例GCT中PCNA、p16、Rb和bcl－2蛋白的表达及用TUNEL法检测其凋亡细胞。