Figure 1.

Clinical and histological photographs of our case of oral lymphoepithelial cyst. (A) The clinical photograph showed a yellowish submucosal mass at the right ventral surface of the tongue near the lingual frenum (arrow). (B) Low-power microphotograph demonstrated a cystic cavity with the epithelial lining and bluish fibrous cystic wall (hematoxylin and eosin stain; original magnification, 4×). (C and D) Medium-power (C; original magnification, 10×) and high-power microphotographs (D; original magnification, 20×) showed a lymphoepithelial cyst lined by parakeratinized stratified squamous epithelium and few keratin shreds in the cystic lumen. There was a prominent lymphocytic infiltrate in the subepithelial connective tissue of the fibrous cystic wall (hematoxylin and eosin stain).