Treating lentigo maligna, also known as melanoma in situ, with laser ablation yields recurrence rates comparable to surgical excision, according to a retrospective study published in Archives of Facial Plastic Surgery. The researchers noted a higher recurrence rate in patients treated with radiation. "Carbon dioxide laser ablation may be advantageous because it treats large lesions in cosmetically sensitive regions of the head and neck in a short period, with minimal morbidity," the researchers wrote.

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