Clinical and Radiographic Findings

This flat, well-demarcated, variably pigmented lesion on the right anterior floor of mouth was present for an unknown period of time and was otherwise asymptomatic. The variation in the color was of concern to the dentist, who therefore recommended a biopsy.

Figure 1. Clinical photograph of the lesion taken at the first visit. Note the flat, well-demarcated, dark brown lesion on the right anterior floor of mouth.