Most head and neck cancers begin in the cells that line the mucosal surfaces in the head and neck area, e.g. mouth, nose, and throat. Mucosal surfaces are moist tissues lining hollow organs and cavities of the body open to the environment.
Head and Neck cancers include tumours above the level of the collar bone (excluding the brain and eye). They are made up of cancers of the mouth, throat, voice box, sinuses and ear and neck (SCCHN).
Cancers of the head and neck are further identified by the area in which they begin:
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