Reunión multidisciplinaria sobre carcinoma de células de Merkel.

Merkel cell carcinoma (MCC) is a cutaneous tumor of unknown origin at the dermal level, described by Cyril Toker in 1972. There are several risk factors, such as ultraviolet light exposure and the presence of polyomavirus. The prevalence is very low; however, mortality is high, with a higher incidence in the seventh and eighth decade of life. The Merkel cell carcinoma is characterized by being a neoformation in the neck or head of nodular appearance, unique, firm, well defined and erythematous. The diagnosis is through AEIOU nemotechnics and immunohistochemical biopsy along with imaging tests to assess the extent and establish the stage of the disease. There is not yet a standardized protocol for its treatment, but it is based on surgical excision, radiotherapy, chemotherapy and immunotherapy with avelumab. The objective of this guide is to review the available and updated scientific literature on Merkel cell carcinoma. For the preparation of this guide, there was the participation of specialists in dermatology and oncology, a librarian and an expert in methodology, concluding that the Merkel cell carcinoma is a tumor with a high level of mortality and low prevalence, this is why early detection is important to begin treatment. [ABSTRACT FROM AUTHOR]