Which of the following is true about pleomorphic adenoma except ?

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. o 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.