Background: The extent of surgery in cases of parotid gland pleomorphic adenoma (PA) remains challenging. This study aims to evaluate the importance of surgical margins in ensuring safe surgery for patients with PA.
Materials And Methods: This prospective study was conducted to evaluate the risk of local recurrence based on surgical margins in patients with parotid PA who underwent superficial or total parotidectomy between May 2019 and November 2021 at a tertiary referral hospital in Tehran, Iran.