Oral lichen planus is a common skin condition that affects the
oral tissues. It is caused by an immune-mediated defect in the
tissues, and generally affects older individuals. It can take
on several clinical presentations from white lines on the buccal
mucosa, to ulcerated, red lesions on the tongue and gums.
Histopathology is very helpful in the final diagnosis, and the
lesions are managed with the use of topical or systemic corticosteroids
or other immunomodulatory agents, depending upon the severity
of the lesions.
Oral lichen planus affecting buccal mucosa.
Erosive oral lichen planus of gingivae.