Unusual CT Appearance in an Odontogenic Keratocyst of the Mandible: Case Report

Images show OKC.

A, Panoramic radiograph shows unilocular well-corticated radiolucency in the mandible and thinning of the cortex of the inferior border of the mandible. However, no resorption of roots and calcification in the lesion is present.

B, Axial bone window CT scan shows expansion and thickening of cortex of the mandible.

C, Axial soft-tissue window contrast-enhanced CT scan obtained through the mandible shows high attenuation and expansile abnormality.

D, Photomicrograph reveals a corrugated, wavy epithelial lining of a uniform layer of stratified squamous epithelium. The epithelium is composed of hyperchromatic cuboidal and columnar cells four to six layers thick. Parakeratinized epithelial cells border the lumen.