A case of lichen planus pemphigoides with oral symptoms

Abstract

Lichen planus is a common chronic inflammatory disease that affects the skin and mucous membranes, including the oral mucosa, whereas lichen planus pemphigoides is a rare disease. A 74-year-old woman who developed blistering and inflammation of the oral mucosa after the appearance of skin lesions was referred to our hospital for consultation. We examined her serum antibody titer, performed histological and immunohistochemical examinations of the oral mucosa, and consulted a dermatologist. The patient was ultimately diagnosed with lichen planus pemphigoides. After treatment, the blisters in the oral mucosa disappeared. Careful follow-up continues to this today.