Results: All cases showed PCNA positive expression but positive intensity and the positive rate correlated with the cell differentiation of parotid glan.

• 结果:PCNA在正常腮腺组织、腮腺多形性腺瘤及腮腺腺样囊性癌中呈阳性表达,但PCNA表达阳性率及强度与腮腺细胞分化程度相关;