Merkel Cell Carcinoma: A Case Report With Treatment Summary and Updates
Merkel cell carcinoma (MCC) is a rare primary cutaneous neoplasm known for its propensity to develop early regional and distant metastasis. Fewer than 400 cases occur annually in the United States. MCC ranks as the most deadly of cutaneous malignancies, with a fatality rate of approximately 25%. Because of its aggressive nature, MCC is often resistant to surgery, radiation, and chemotherapy regimens. Standardized treatment patterns have not been established, and difficulty arises finding appropriate treatment for the elderly, who comprise the majority of patients with MCC.
Given the early dissemination of MCC and the poor prognosis once metastasis has occurred, aggressive treatment for stage I disease must be considered. Radiation therapy may be palliative and may have an increasing role as prophylactic protection in early disease. Chemotherapy has been employed in regional spread of disease (stage II). Will chemotherapy utilized in earlier stages of disease be a possible solution? Could combined chemoimmunotherapy be a useful compliment to the modest success of radiation treatment? These modalities are only as good as their practical use in the typical elderly patient with MCC, and addressing this challenge will be crucial in future research. back to top
