Photodynamic therapy for nonmelanoma skin cancerPhotodynamic therapy (PDT) is being studied as a treatment for
nonmelanoma skin cancer. PDT is a process of applying
a medicine to a skin cancer and then shining a special laser light on it.
Results of early studies with the medicine 5-aminolevulinic acid (ALA) show
that topical PDT may be effective in treating
actinic keratoses on the face and scalp,
squamous cell carcinomas in the earliest stage (Bowen's disease), and superficial
basal cell carcinomas. Studies report good results
with skin appearance after treatment and a low rate of side effects.1 Researchers believe that PDT may be particularly effective in
treating actinic keratoses, large or multiple skin cancers, Bowen's disease, or some basal cell
cancers. But PDT is not used for the treatment of nodular basal cell
carcinomas or fully developed squamous cell carcinomas.2, 3
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