Lymphoepithelial Cyst in the Parotid Gland; A Case Report

Abstract

A 67-year-old female had a one-year history of a painless gradually enlarging mass in the right parotid region. Under general anesthesia, a 20×20mm cyst was removed by superficial parotidectomy. The histological diagnosis was lymphoepithelial cyst. The origin of this type of cyst is still controversial. In the present case, salivary ductal epithelial cells forming tubular structures were observed in the cystic wall. Therefore, the cyst was possibly formed from parotid gland cells included in a lymph node.