Merkel Cell Carcinoma of the Breast: A Case Report

Background: Merkel cell carcinoma (MCC) is a rare neuroendocrine tumor of the skin. The annual incidence is 0.13–1.6 per 100.000. MCC arise from Merkel cells in the basal layer of the epidermis and hair follicles. It is characterized by poor prognosis and rapid progress with a mortality rate about 30%. Most patients are over 65 years. We represent a rare Case of MCC in the breast and axilla.