人唾液腺上皮性肿瘤的形成可看作为发生了表型不同于普通基因型前体细胞的肿瘤细胞。例如:1971年Eversole 曾提出唾液腺肿瘤组织发生于未分化的储备细胞(reserve cell)或干细胞的理论。即:闰管细胞(intercala-ted duct cell)和排泄导管储备细胞可能起某种前体细胞的作用,另一方面,其他许多研 The formation of human salivary gland epithelial tumors can be seen as the occurrence of tumor cells that have a phenotype different from the normal genotype precursor cells. For example, in 1971 Eversole proposed the theory that salivary gland tumor tissues occur in undifferentiated reserve cells or stem cells. That is, intercala-ted duct cells and excretory duct reserve cells may act as precursors of some sorts. On the other hand, many other studies