Odontogenic Keratocyst

**Semantic type:** Finding

**Definition:** A developmental cyst that arises from remnants of the dental lamina. It is characterized by a thin, regular lining of parakeratinized stratified squamous epithelium with palisading hyperchromatic basal cells. It occurs most frequently in the mandible. Most lesions present as painless radiolucencies and are found incidentally during radiographical examination for other reasons. Treatment is most often by enucleation, or by surgical resection for large lesions. Recurrences were more frequent in the past but are dramatically reduced with meticulous treatment. (WHO 2017)

**Synonyms:** - Keratocystic Odontogenic Tumor - Keratocystic Odontogenic Tumor - OKC