The Malignant Transformation of Oral Lichen Planus and Oral Lichenoid Lesions, a Case Report and Review of the Literature

Oral lichen planus (OLP) is a chronic immunological disorder of unknown etiology involving skin and mucosa. Oral lichenoid lesions (OLL) are clinically and histologically similar to OLP. OLL has also been described as an oral lichenoid reaction or lichenoid contact stomatitis. The etiology of OLL is considered to be an exogenous factor such as oral hygiene products, food, medications or dental material. It is not a simple task to distinguish between the OLP and OLL. Here we report a case of OLL with malignant transformation that occurred two times. Diagnostic criteria to distinguish these two entities will be discussed as well. ©2019 The Authors. Published by the JScholar under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/ by/3.0/, which permits unrestricted use, provided the original author and source are credited. J Clin Anat Pathol 2019 | Vol 4: 10