Abstract
A lymphoepithelial cyst often was identified with branchial cyst and lateral cervical cyst. A lymphoepithelial cyst usually occurs in the lateral cervical areas. It is characterized histopathologically as the lymphoid tissue below the lining of the stratified squamousepithelium of the cyst, but the same cyst sometimes occurs in the oral cavity, especially the sublingual area or floor of the mouth. This report includes two cases of the cyst in the oral cavity. We excised the swelling with surround tissue in the local anesthesia. Histopathological diagnosis was a lymphoepithelial cyst.