Erosive palmoplantar lichen planus (LP), also known as ulcerative or bullous LP, was first described by Cram et al. in 1966 as a rare variant of LP that can affect mucous membranes, palms, and soles. It presents clinically as erythematous, ulcerated plaques that run an extremely chronic course and are resistant to all types of treatment. The patient was an 84-year-old woman with a personal hist...
