Methods: Samples from 20 cases of adenoid cystic carcinoma(ACC) and 18 cases of mucoepidermoid carcinoma(MEC) were immunohistochemical stained with S100 antibody.

• 方法:选取20例腺样囊性癌和18例粘液表皮样癌标本,分别进行S100免疫组化染色。