Acinic Cell Carcinoma Arising from Unusual Location: 3 Case Reports

ABSTRACT

Most acinic cell carcinomas arise within the parotid gland extraparotid origin is rare. We encountered three cases of extraparotid acinic cell carcinoma arising in the buccal or palatal region, or the submandibular gland. All three tumors presented as a painless, slow-growing mass. CT imaging indicated that they were well defined, homogeneously enhanced, round masses. In one case, sonography demonstrated relatively homogeneous low echogenicity.