These findings show that PDT has the potential to reduce the histological signs of photoageing. Moreover, the reduction of Ki-67, a marker of proliferation and of p53, a marker of early skin carcinogenesis, indicates a reversal of the carcinogenic process. On the other hand, the fact that one treatment does not clear dysplasia and expression of p53 completely, and the persistence of cyclin D₁, indicate that one single treatment, despite showing good clinical results, is not sufficient to clear completely the signs of chronic actinic damage, and thus the risk of NMSC.
A 32-year old patient presented with an asymptomatic, non-specific tumour located at the site of a previous cesarian scar. The tumor had never bled but its size changed and the color and consistency varied coinciding with the menstrual cycle. The dermatopathologic study showed the existence of ectopic endometrial glandular tissue in the whole thickness of the reticular dermis.
Epithelioid hemangioendothelioma (EHE) has been considered to be a low-grade malignant vascular neoplasm, although follow-up of recent series has demonstrated that EHE involving the skin and soft tissues should be better regarded as a fully malignant vascular tumor since it has more metastatic potential than previously thought. We report a case of an EHE involving the left sole of 6-year-old boy, the youngest patient with cutaneous EHE described to date. Immunohistochemical studies demonstrated a lymphatic endothelial line of differentiation for neoplastic cells. Cutaneous EHE is rare in childhood, with only five previously described cases.
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