Over a year, a man develops irritable white patches on his buccal mucosa. What are these lesions and how can they be treated?
Over a 12-month period, a 58-year-old man developed irritable patches on both sides of his buccal mucosa. Clinical examination revealed white lace-like plaques with focal erosions on the buccal mucosa and lips (Figure 1). Biopsy of the mucosa showed a prominent lymphocytic infiltrate hugging the mucosal epithelium at the junctional zone (Figure 2), but no epithelial dysplasia.