Superficial versus total parotidectomy for recurrent pleomorphic adenoma in the parotid gland.

Recurrent pleomorphic adenoma (RPA) is a challenging disease because of difficulty in reoperation, a high rate of postoperative facial palsy, and potential malignant transformation. The optimal management of RPA is still arguable regarding the surgical extent and the necessity of radiotherapy. Therefore, this study compared the complication and re-recurrence rates of superficial versus total parotidectomy in a prospective cohort of 29 patients with RPA. Two surgical techniques were allocated to consecutive patients without randomization and blinding processes. Total parotidectomy was applied to lesions in deep or both lobes. Most early and late complication rates were statistically comparable between the two groups (P > 0.05). Transient and permanent facial nerve paralysis frequently occurred in 55 % and 14 % of all cases, respectively, without statistical difference between the two groups (P > 0.5). Only one patient (3 %) had re-recurrence after superficial parotidectomy during the mean follow-up of 89 months. Superficial or total parotidectomy is recommended to reduce the risk of further recurrence in patients with RPA.