Figure 2: Pre-PDT (blue) and post-PDT (red) measures of lesion area (in mm2) for participants with BCC lesions ( 𝑛 = 1 0 ). Participant BCC2 has been removed because his pre-PDT lesion was >1700 mm2, thus, altering the scale of change from the remaining 9 participants in this group; however, this participant did have a complete response to PDT.