CEACAM5 and dermis tumor: A skin excision biopsy was carried out, whose report was a dermal tumor mass from the lower portion of the epidermis, well defined, formed by small cuboidal cells without atypia, arranged in well-defined bands that anastomose without barricade, with pigmented areas and few dilated ducts, which are in contact with the resection margins, compatible with eccrine poroma (Fig 2.) Immunohistochemistry was also performed, highlighting Carcinoembryonic Antigen (CEA) with elongated cells that line the cavities that support glandular differentiation.