The efficacy of photodynamic therapy for the treatment of a large number of skin diseases, in particular non-malignant skin cancer, has been reported by a number of studies. It has been demonstrated to be particularly beneficial for large or multiple lesions, especially where good cosmesis is required. However for PDT to become established in routine clinical practice further comparative multi-center studies with currently accepted standard techniques are required.

Key words: Photodynamic therapy, Actinic keratoses, Basal cell carcinoma, Squamous cell carcinoma, Bowen?s disease, Cutaneous T-cell lymphoma.