Treating Vitiligo at the Angle of Lips: A Narrative Review.

Vitiligo is a common autoimmune depigmentary disorder seen among Indian patients. It has a significant impact on the self-esteem of the patient. Specific sites including acral areas, joints, and lips are usually resistant to medical therapy and thus transfer of melanocytes is mandatory for the treatment. Vitiligo at the angle of lips is distinct from the vitiligo on other sites, with respect to response to therapy, lack of hair follicles, and high mobility of the area. Our aim was to review the various therapeutic modalities available for the treatment of vitiligo at this site. In our narrative review, we searched databases including PubMed, Google Scholar, and EBSCO with a full strategic search with keywords "Vitiligo," "leucoderma," "mucosal vitiligo," "lips," "labial," "angle of lips," "Minipunch grafting," "Suction Blister epidermal Grafting," "SBEG," "Micropigmentation," "tattooing," and "Excision" from 2005 to 2021. The relevant articles were extracted and included in the review. Various modalities including suction blister grafting, miniature punch grafting, split-thickness grafting, and micropigmentation have been reviewed with their advantages and disadvantages. Various potential modalities of therapy have also been proposed in the review.