ALT_DEFINITION |
The area of the body comprising the skull, facial bones and the cervical vertebrae, sinuses, orbits, salivary glands, oral cavity, oropharynx, larynx, thyroid, facial and neck musculature, soft tissue and lymph nodes draining these areas.
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DEFINITION |
For oncology, an area of the body generally construed to comprise the base of skull and facial bones, sinuses, orbits, salivary glands, oral cavity, oropharynx, larynx, thyroid, facial and neck musculature and lymph nodes draining these areas.
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