**7. Final considerations**

PDT is a noninvasive technique, with few potential adverse reactions, that presents good curative rates and excellent cosmetic outcome. It may be chosen as a first option for patients with small lesions of nonmelanoma skin cancer, especially the ones in complex sites for surgical ressection or in high risk patients.

PDT protocols and customized dosimetry for each target skin lesion still need to be defined. The development of new PDT drugs and delivery systems has the potential of increasing the curative rates of the present protocols. Instrumentation of light sources designed to adapt the emission geometry to the anatomical site characteristics is also important to improve PDT performance in cancer treatment.

The local treatment of infected lesions and cosmetics are PDT indications that have been fastly increasing. New protocols and drugs have been investigated, as well as new light devices developed, making PDT in Dermatology an exciting and growing field.
