Photodynamic therapy (PDT) is a well established treatment option for superficial non melanoma skin cancer, such as superficial basal cell carcinoma (sBCC) and Bowen Disease (BD). However, a limited uptake of the topically applied photosensitizer methyl aminolevulinate (MAL) may reduce its efficacy. Pretreatment with an ablative carbon dioxide (CO2) laser has recently been studied in order to enhance the skin penetration of this photosensitizer. This study compares the results of a full ablative and a fractional ablative CO2 laser mode as pretreatment of PDT in the management of sBCC and BD. The endpoints efficacy, pain, aesthetics and patient preference are investigated during twelve months of follow up.
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Clinical efficacy after twelve months of follow up
Timeframe: month 12