A 52-year-old man presents with a 3-month history of a painless, slow-growing swelling in the right parotid region. On examination, a firm, mobile mass of approximately 2 cm is palpated anterior to the sternocleidomastoid muscle. There is no facial nerve involvement. Fine-needle aspiration cytology (FNAC) shows epithelial cells with myoepithelial components suggestive of pleomorphic adenoma. What is the most appropriate next step in management?