Photodynamic therapy vs. cryotherapy for actinic keratoses

August 27, 2014 9:07 PM

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Photodynamic therapy (PDT, which uses topical agents and light to kill tissue) appears to better clear actinic keratoses (AKs, a common skin lesion caused by sun damage) at three months after treatment than cryotherapy (which uses liquid nitrogen to freeze lesions).

AKs are rough, scaly lesions on the skin typically found on individuals with fair complexions who have had lots of sun exposure. The lesions have the potential to become cancer. PDT is an increasingly popular treatment.

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