Dermoscopy in Merkel Cell Carcinoma: A Case Report

  • Victoria Guiote Domínguez Assistente Hospitalar de Venereologia do Centro Hospitalar de Leiria/Consultant of Dermatology and Venereology, Leiria, Portugal
  • Maria Fernanda Cunha Chefe de Serviço/Diretora do Serviço de Anatomia Patológica do Centro Hospitalar/Consultant
Keywords: Carcinoma, Merkel Cell, Dermoscopy


Merkel cell carcinoma is a rare neuroendocrine tumor localized in photo-exposed areas in aged adults. A high risk of local recurrence, early metastatic disease and, frequently, a late diagnosis, are determinant of a poor prognosis. Dermoscopic examination of this lesion, which is characterized by the presence of multiple atypical vessels and “red-milky areas”, might be a very useful tool to suspect the diagnosis rapidly and early, allowing treatment in due time. The authors report the case of a 71-years-old patient presenting with a Merkel cell carcinoma in the right lower limb in which the dermoscopic findings picked up a high grade of suspicion and allowed tumor excision in a clinically useful and treatable time. The authors also describe the most important dermoscopic findings and patternsobserved in this tumor and the differential diagnosis one must consider in these cases.


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How to Cite
Guiote Domínguez, V., & Cunha, M. F. (2018). Dermoscopy in Merkel Cell Carcinoma: A Case Report. Journal of the Portuguese Society of Dermatology and Venereology, 75(4), 397-400.
Dermatoscopy Article