A 72-year-old woman suffering from multiple actinic keratosis (AK) complicating steroid-induced rosacea received 5-aminolevulinic acid-photodynamic therapy (ALA-PDT) in our outpatient clinic. Both AKs and rosacea got remission after one session of PDT. However, adverse effect of severe acute inflammatory response emerged with lasting hyperpigmentation. We then terminated the following PDT sessions in time. After skin care and closely follow-up for a half year, most symptoms and lesions of AK and...
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