DOsimetry and Radiation Induced NAusea in Head and Neck Cancers

This study examines the relationship between the radiation dose delivered to specific areas of the brain and the severity of nausea experienced during radiation therapy for head and neck cancers. The goal is to identify which brain areas, when exposed to radiation, cause the most nausea so future treatments can better avoid them. **You may be eligible if...** - You are 18 or older - You have been diagnosed with a primary head and neck cancer (including oropharynx, nasopharynx, mouth, salivary glands, or sinuses) - You are receiving curative radiation therapy with modern techniques (IMRT, VMAT, proton therapy, or similar) - You are willing to provide clinical data for the study **You may NOT be eligible if...** - Your cancer is not a primary head and neck tumor - You are not receiving radiation with curative intent - You are unwilling or unable to have data collected Talk to your doctor to see if this trial is right for you.