PDT in dermatology

Abstract

Skin is the largest organ of the human body. Usually, it is easy accessible for topical application of drugs and light dosimetry is easy due to the rather flat appearance in a first approximation. On the other hand a larger number of skin diseases cover a larger area or show multifocal appearance, which favors regional or large field therapies and impedes surgical interventions. As scar formation is another and today highly unwanted result of surgery, the widespread use of PDT in dermatology is a necessary consequence.