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Pronunciation: ker'a-to-sist

Definition: Odontogenic cyst derived from remnants of the dental lamina and appearing as a unilocular or multilocular radiolucency that may produce jaw expansion; epithelial lining is characterized microscopically by a uniform thickness, a corrugated superficial layer of parakeratin, and a prominent basal layer composed of palisaded columnar cells; associated with the bifid rib basal cell nevus syndrome.

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.