Figure 1. Examples of different cysts of the oral cavity. A: Dentigerous cyst-Follicular cyst: cystic lumen is lining by stratified squamous epitheliumB: Nasopalatine duct cyst: an intraoperative phase is depicted. C: Cyst of the globule-maxillary area (arrow): characteristic imaging that notpresents always the same histological features at microscopic observations. D: Calcifying Odontogenic Cyst: histological feature of ghost cellsidentified as deep blue-purple areas.