| a benign tumor of the salivary gland containing varying proportions of epithelial and mesenchymal elements. The intermediate type of epithelial cells is in sheets, cords, and acini. The mesenchymal tissue varies from myxomatous to cartilaginous to densely hyalinized connective tissue. The marked variations in histologic pattern are responsible for the designation of pleomorphic. Also called mixed salivary gland tumor. |