Photodynamic therapy in mycosis fungoides.

Photodynamic therapy involves the topical application of a photosensitizer to a lesion, which is then subsequently exposed to a light source. It is mainly used in the nonsurgical treatment of nonmelanoma skin cancer, in which it achieves good response and an excellent cosmetic result. In the last 10 years, photodynamic therapy has also been used with some success in the treatment of plaque-stage mycosis fungoides and has emerged as an alternative to skin-directed therapies. Its main advantages are the good response to treatment, lack of toxicity, and excellent cosmetic results. This article reviews the literature and the practical application of photodynamic therapy in mycosis fungoides.