<prompt> Pleomorphic adenoma histology is characterized by?Epithelial componentEndothelial componentMesodermal componentMixed epithelial and mesenchymal components  <response>: Ans. is d i.e., Mixed epithelial and mesenchymal components They are derived from a mixture of ductal epithelial and myoepithelial cells and therefore they show both epithelial and mesenchymal differentiation -Also called mixed tumor. Pleomorphic adenoma :? This is the Commonest neoplasm of Salivary glands. The most Common salivary gland involved is Parotid - represent about 60 tumors in the parotid. Submandibular and minor salivary glands may also be involved rarely. Pleomorphic adenoma - Parotid Submandibular minor salivary glands. They are derived from a mixture of ductal epithelial and myoepithelial cells and therefore they show both epithelial and mesenchymal differentiation - Also called mixed tumor. 