Lichen Sclerosus of the Labial Mucosa: A Case Report and Literature Review

Lichen sclerosus (LS) is a rare chronic inflammatory disorder, particularly uncommon in the oral mucosa, with only 39 biopsy-confirmed cases reported. This case report discusses a 58-year-old female with LS on the labial mucosa, diagnosed through a punch biopsy after presenting with a whitish sclerotic plaque on the lower lip. Treatment with topical and intralesional corticosteroids led to improvement within 2 months. The report highlights the importance of recognizing oral LS and contributes to the understanding of this rare condition, as current evidence-based treatment guidelines are lacking.