Our Photodynamic therapy Main Article provides a comprehensive look at the who, what, when and how of Photodynamic therapy
Definition of Photodynamic therapy
Photodynamic therapy: A form of treatment that uses a photosensitizing agent, administered by mouth or intravenously, which concentrates selectively in certain cells, followed by exposure of the involved tissue to a special light (such as laser or ultraviolet light), in order to destroy as much of the abnormal tissue as possible. For example, photodynamic therapy is used to treat some forms of cancer and psoriasis. Also known as photochemotherapy. Last Editorial Review: 3/19/2012 Back to MedTerms online medical dictionary A-Z List 
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