A Reteospective Study Of 86 Pleomorphic Adenoma Of Parotid Gland Tumors

Purpose:To summarize the clinical features of 86 pleomorphic adenoma parotid tumors, and to investigate the choice of operations for different diameter of superficial pleomorphic adenoma parotid tumor and the postoperative complications.Methods:We retrospectively reviewed the medical records of 86 pleomorphic adenoma parotid tumor cases from June 2010 to June 2015 from the Otolaryngology-Head and Neck Surgery in First Affiliated Hospital of Guangxi Medical University.Results:Pleomorphic adenoma was the most common of benign tumor Compare with postoperative histopathologic diagnosis, accounted for 38.5%. Age at onset was 8 to 95 years old, with a median of 40 years. Male 47 cases, female 39 cases, male to female ratio was 1.16:1. There was no statistical significance of postoperative complications between retrograde dissection group and anterograde dissection group during the resection of parotid pleomorphic adenoma (temporary facial nerve paralysis, salivary fistula, Frey’s syndrome, temporary ear lobe numbness).As for pleomorphic adenoma, when the diameter<3cm,the incident rates of temporary facial nerve paralysis and ear lobe numbness of the partial superficial parotidectomy group were higher than superficial parotidectomy group’s(p<0.05), and there was no statistical significance between partial superficial parotidectomy group and partial superficial parotidectomy group in the incident rates of salivary fistula, and Frey’s syndrome(p>0.05).No recurrence cases were found in both groups(p<0.05);When the diameter>3cm, the recurrence rate of superficial parotidectomy group was lower than the others, and there was no statistical significance between 2 groups in the rates of complications(p>0.05).Conclusions:Pleomorphic adenoma was the most common benign parotid tumor, more common in man. The highest incidence was in 40-45years. In the condition of the similar incidence rate of complications, according to the tumor location and pathological type, suitable cases are selected by different facial nerve anatomy method can improve operation efficiency.As for superficial pleomorphic adenoma, when the tumor diameter<3cm, partial superficial parotidectomy can reduce the incidence rate of postoperative temporary facial nerve paralysis and earlobe numbness. When the safe resection margin is unclear and the tumor diameter>3cm, superficial parotidectomy can reduce the recurrence rate.