Atypical Presentation of Merkel Cells Carcinoma in Thigh. An Unusual Case

Abstract

Background:The Merkel Cells Carcinoma (MCC) is a neuroendocrine carcinoma of the skin. MCC within the lymph nodes in the absence of a primary site is rare and has only been reported sporadically.Case report: A male patient of 62 years old consults by right inguinal tumor. Lymphadenectomy is made and it informs carcinoma of cells of Merkel. Hidden primary tumor. After 20 months of follow up appears injury to nodular in internal face of right thigh interpreted like primary tumor. Resection is made. We discuss the disease, the diagnosis and the treatment of these tumors. Conclusion:The Merkel Cells Carcinoma (MCC) is a neuroendocrine carcinoma of the skin. MCC within the lymph nodes in the absence of a primary site is rare and has only been reported sporadically. Our case may represent a lymph node metastasis from an occult or regressed skin primary, but we cannot preclude the possibility of a primary nodal tumor. It is not known until today as it is "the best" therapeutic choice for these cases Keywords: Tumor of cells of Merkel; Carcinoma of cells of Merkel; Rare Tumors of soft parts .