[Treatment of actinic keratosis prevents progression].

Actinic keratoses are epidermal changes resulting from chronic ultraviolet irradiation of the skin and are regarded as premalignancies. All actinic keratoses should be treated to prevent their progression to squamous cell carcinoma. There are several therapeutic modalities, which usually are well tolerated by the patient.

NewFill for skin augmentation: a new filler or failure?

Background: New injectable materials for skin augmentation that promise to be the ideal filling material are introduced every year. Recently, we treated three patients with adverse reactions to a new substance for skin augmentation: polylactic acid (NewFill, Ashford Aesthetics Inc, Belgium).

Objective: To present three cases in which serious adverse reactions had occurred after skin augmentation with a new filling substance, polylactic acid (NewFill).