Two Cases of Unusual Clinical Features of Keratoacanthoma

Abstract

The Iraqi and the Yemeni dental literature lack documentation of keratoacanthoma (KA). It uncommonly appears at the mucocutanous junction and very rarely reported to arise in the mucous membrane. Nevertheless, it has such a chance; therefore, it is necessary to bring the attention of dental practitioners to this lesion. It is a benign epithelial tumor that frequently affects the face of old people. It usually, appears as an exophytic nodule with a central keratin plug that grows rapidly but with several poses. Clinically and microscopically KA is similar to squamous cell carcinoma (SCC) and can be occasionally misdiagnosed therefore it is important to be biopsied and carefully interpreted. This report presents two clinically unusual cases of KA.