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Eccrine syringofibroadenoma (ESFA) is a benign adnexal tumor arising most often on the extremities of elderly individuals characterized by anastomosing cords of cuboidal epithelial cells surrounded by a fibrovascular stroma containing plasma cells and ductal structures. ESFA stains positively with epithelial membrane antigen (EMA) and carcinoembryonic antigen (CEA). [NCIT:CL017969, PMID:26937300]
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