涎腺肿瘤类型繁多,很多类型的肿瘤存在多种不同亚型,组织学表现差异大,不同类型肿瘤可出现形态学交叉,即相似的组织学、细胞学特征。这些都给涎腺肿瘤的病理诊断带来困难,故对涎腺肿瘤的鉴别诊断非常重要,需要正确认识涎腺肿瘤的形态学变异,从具有相似形态学特征 Many types of salivary gland tumors, many types of tumors exist in many different subtypes, histological differences in performance, different types of tumors may appear morphological cross, that is similar to the histological, cytological features. These are difficult to pathological diagnosis of salivary gland tumors, so the differential diagnosis of salivary gland tumors is very important, you need to correctly understand the morphological variation of salivary gland tumors, with similar morphological characteristics