ABSTRACT
A 74-year-old male had undergone radiation therapy 8 years before for invasive squamous cell carcinoma of the right lateral lower lip. Bioatrophy of the mucosa and submucosal muscular layer had occurred, and a new locus of irregularity and slight induration was noted adjacent and medial to the previously irradiated area. Diffuse actinically induced premalignant cheilitis was obvious. The man had been complaining for several years of loss of fluids through the atrophic radiated area, and he requested an attempt at repair of his incompetent ‘‘lip seal’’ mechanism concomitant with the surgical reconstruction following removal of the newly malignant area (Figure 1).
