Acinic cell carcinoma (ACC) is a rare epithelial malignant neoplasm of salivary glands affecting predominantly the female population. Unusual occurrences of this neoplasm are reported in hard palate, maxillary sinuses, lip, etc. [1] We report one such case where a submandibular swelling that is provisionally diagnosed as pleomorphic adenoma due to its clinical and radiological findings, turned out to be ACC on histopathological evaluation.