Calcifying Epithelial Odontogenic Tumor: Case Report With Immunohistochemical and Ultrastructural Study and Review of the Literature

A calcifying epithelial odontogenic tumor (CEOT), also known as a Pindborg tumor, is a benign odontogenic neoplasm first described by the Danish pathologist, Dr Jens Pindborg, in 1955.(1) CEOT is an uncommon, locally aggressive tumor that accounts for 0.4% to 3% of all odontogenic tumors. Since 2004, approximately 200 cases of CEOT have been reported. Because the tumor is so rare, its biological characteristics have not been adequately studied. The authors present the case of a 50-year-old woman with CEOT and the results of immunohistochemical and electron microscopic studies.