The photodynamic therapy is a promising method for the minimally invasive treatment of early cancers in some organs.

Cancer Facts CIS Home Cancer.gov Dictionary Search Date reviewed: 8/24/1999 Photodynamic Therapy Photodynamic therapy (also called PDT, photoradiation therapy, phototherapy, or photochemotherapy) is a treatment for some types of cancer. It is based on the discovery that certain chemicals known as photosensitizing agents can kill one-celled organisms when the organisms are exposed to a particular ...