Introduction

Leukoplakia is a potentially oral premalignant lesion [1]. Leukoplakia clinically appears as a white continuous or homogeneous plaque or non-homogeneous or discontinuous white plaque, white nodular or hair-like elevated proliferative verrucous or speckled forms with red areas [1]. Oral leukoplakia is a white lesion of the oral mucosa that can be described as any other classifiable lesion. Homogeneous leukoplakia presents with a well-demarcated white plaque with a uniform reaction pattern in the whole mucosa [2]. The surface texture ranges from smooth to leathery texture with surface fissures termed as "cracked mud" [2]. Unlike leukoplakia, lichen planus lesions are more cottony and fluffy with no clear demarcation [2]. Lesions of leukoplakia are asymptomatic, whereas oral lichen planus lesions have burning pain in their past history [2,3]. Non-homogeneous leukoplakia is mixed with interspersed patches of red components or erythroplakia or speckled leukoplakia. Nodular leukoplakia consists of a surface covered with nodular, raised, papillary projections [2,3].