text: has anyone  experienced or know about salivary gland tumors?   salivary gland tumors comprise less than 3% of head & neck tumors.  between 75% and 85% are in the parotid gland and approximately 70% of those are benign mixed tumors (pleomorphic adenomas).  tumors may be benign or malignant and occur in the parotid, the submandibular salivary gland, or in the minor salivary glands found in the lining of the oral cavity.