Sites of Head and Neck Cancers base of tongue buccal mucosa (cheek) ear canal floor of mouth gum (gingiva or retromolar trigone) larynx (glottis or vocal cord) larynx (subglottis) larynx (supraglottis) lip cancer occult primary (hidden source) oral tongue nasal nasopharynx neck node metastases palate parotid pharynx pyriform sinus retromolar trigone salivary gland sinus (maxilla or ethmoid) thyroid tonsil