涎腺多形性腺瘤的组织病理学和组织化学方面,国内已进行了较详细的观察和分析。此瘤在形态学上表现出特征性的“多形性”或“混合性”即肿瘤性上皮组织、粘液样组织与软骨样组织的混合。因此,关于多形性腺瘤中上皮细胞与粘液样和软骨样组织之间的关系,以及此瘤的组织发生学问题,受到学者们的广泛关注。从超微结构方面研究以上问题,近来国外已有报告。国内尚未见这方面的文献资料。本文报告我院6例大涎腺多形性腺瘤中上皮 The histopathological and histochemical aspects of the parotid pleomorphic adenoma have been observed and analyzed in detail in China. This tumor shows a characteristic “polymorphism” or “hybridity” in morphology that is a mixture of neoplastic epithelial tissue, mucinous tissue, and cartilage-like tissue. Therefore, the relationship between epithelial cells in the pleomorphic adenomas and mucoid and cartilage-like tissues, as well as the histogenetic problems of this tumor, have received extensive attention from scholars. The study of the above problems from the aspect of ultra-micro structure has recently been reported abroad. Domestic literature in this area has not yet been seen. This article reports 6 cases of large salivary gland polymorphic adenoma in our hospital