A case of acinic cell adenocarcinoma of the left facial area of 10-years' duration in a 29-year-old man is presented. The patient reported surgical resection of a nodular lesion in the left buccal mucosa 8 years earlier in another hospital. Since then, the lesion recurred 3 times within 2 years. The first lesion and 2 recurrent ones were surgically removed. With the third recurrent lesion, the patient did not return promptly for treatment and was directed to our clinic after 6 years. The clinical, tomographic, immunohistochemical, and therapeutic aspects are analyzed. Keywords: acinic cell carcinoma, cytokeratin, immunohistochemistry, Ki-67, salivary gland neoplasm, vimentin