Reduction of surgical invasiveness in the treatment of cystadenolymphomas of the parotid gland

Introduction:

The ideal extent of surgical intervention for parotid cystadenolymphomas remains controversial. The aim of our study was to evaluate the tumor-biological and functional results after extracapsular dissection for parotid cystadenolymphomas. In addition, our study aimed to evaluate the influence of the size of the primary lesion and the number of lesions on the incidence of an ipsilateral metachronous tumor.

Methods:

The present study was based on a retrospective analysis of the medical records of all patients who underwent extracapsular dissection by cystadenolymphomas of the parotid gland in our department.

Results:

595 patients were analyzed retrospectively. Our analysis showed a total incidence of ipsilateral metachronous tumors of 2.2% (13/595) with a mean follow-up of 60 months. No influence of the size of the primary lesion on the rate of metachronous tumors could be detected. In contrast, a significant difference in the rate of ipsilateral metachronous lesions between primary unilocular (1%) and multilocular (4.1%) tumors could be detected (p = 0.027). Compared to the "gold standard" of complete parotidectomy in multilocular lesions, a significantly higher rate of metachronous lesions following extracapsular dissection was demonstrated (p = 0.004). Permanent facial palsy was found in only 1% (6/595) of our study patients.

Conclusion:

Our analysis revealed excellent tumor-biological and functional results after extracapsular dissection in solitary and carefully selected multilocular cystadenolymphomas of the parotid gland.

Publication History

Publication Date:
18 April 2018 (online)