Photodynamic Therapy to Treat Actinic Damage in Patients With Squamous Cell Carcinoma (SCC) of the Lip

"Day 1: Screening and consent for this study. If eligible, a scouting biopsy will be obtained at 1 cm from the clinical border of the SCC for confirmation of AC.~7-14 Days after consultation: PDT to all subjects in the study. If during treatment a subject requests to discontinue due to pain the treatment will be terminated.~3-5 weeks after consultation: return for assessment. At this visit, the assigned treatment may be repeated if the treatment site is adequately healed. Re-treatment will only occur if there is persistent actinic damage.~6-8 weeks after consultation: Mohs surgery will be performed as per routine. Following tumor removal a scouting biopsy will be taken at a site 1 cm from the wound site created by SCC removal. The current waiting time for non-urgent surgery is 8 weeks. Standard care is not being altered for subjects in the study, other then their receiving the PDT intervention.~Photographs may be taken at each subject visit."