Unusual CT Appearance in an Odontogenic Keratocyst of the Mandible: Case Report
Koichi Yonetsua,
Jorge G. Bianchia,
Maria J. Troulisa and
Hugh D. Curtina
a From the Department of Radiology (K.Y.), Nagasaki University Hospital of Dentistry, Japan; the Departments of Maxillofacial Radiology (J.G.B.) and Oral and Maxillofacial Surgery (M.J.T.), Harvard School of Dental Medicine, Boston, MA; and the Department of Radiology (H.D.C.), Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston.
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FIG 1. 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.
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