Immunohistochemical expression of cytokeratins in human salivary gland acinic cell carcinomas

We demonstrated that the microcystic, follicular and papillary-cystic subtypes of AcCC exhibit features of ductal luminal cells with expression of CK7 and CK19, suggesting their ductal origination. By contrast, the solid subtype might originate from different cells with no ductal CK expression.