Photodynamic therapy or PDT is a treatment that uses special compounds, called photosensitizing agents, along with light (referred to as Blue Light) to treat Actinic keratosis (AKs), rough-textured, dry scaly patches on the skin that are caused by excessive UV exposure such as sunlight. Over a certain amount of time the compound is absorbed by the cancer cells. Then light is applied to the area to be treated. The light causes the compound to react with oxygen, which forms a chemical that kills the cells.
Actinic keratoses (AKs) are rough-textured, dry scaly patches on the skin that are caused by excessive UV exposure such as sunlight. They can range in color from skin-toned to reddish-brown and can be as small as a pinhead or larger than a quarter. They occur most often on the face, scalp and ears.
Individuals with a higher likelihood of developing one or more AKs are those with:
*AKs develop as the result of years of sun exposure and are cumulative over time.
*Even if you didn’t suntan much, years of simple tasks can add up to significant damage (i.e. walking the dog, playing a sport, going to the mailbox).