Gingival odontogenic keratocyst presenting as pseudoinfection: Inclusion of demonstrative case report and review.

Background: The peripheral odontogenic keratocyst (POKC) is a rare developmental odontogenic cyst and represents the soft tissue counterpart of the more common intraosseous variant. Although the majority of POKCs have been discovered on the gingiva, scant information is available in the periodontal literature.

Methods: A 69-year-old man presented with a painless, red fluctuant-like papular lesion on the maxillary anterior labial gingiva.