Photodynamic therapy (PDT) is an established nonsurgical treatment for nodular basal cell carcinoma (nBCC). This study compares the clinical, histopathological, and immunohistochemical findings in recurrent nBCC after PDT versus pre-treatment (primary) nBCC. This retrospective study analyzed nodular BCCs treated with methyl
Vitamin D (VD) serum levels, and keratinocytic basal expression of vitamin D receptor (VDR) before treatment of actinic keratoses (AK) have been previously reported as possible biomarkers of the response of AK to treatments. We intended to evaluate the association between these and other serum and immunohistochemical parameters with the response of AK to treatment with topical ingenol mebutate (IM).Twenty-five patients with AK on the head were treated with topical IM 0.015% gel once daily for 3 days. Biopsies were taken at baseline and 6 weeks after treatment.Immunohistochemical staining was performed for VDR, P53, Ki67, Aurora B, Survivin and β-catenin. Basal serum 25(OH)D levels were determined. IM was more effective
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