Most of the investigations on syndecan-1 in non-salivary gland tumors have focused on its expression in neoplastic cells18, 19, but, recent studies suggest that CD138 may have a role in the tumor stroma of some neoplasms.20, 21 To our knowledge, there is no former research on the expression of CD138 in the stroma of salivary gland tumors. Here, SDC1 is linked to neoplasm.