How do head and neck cancer develop?

 

Head and Neck Cancer Market
Head and Neck Cancer Market

Head and neck cancers typically begin in the squamous cells that line the moist, mucosal surfaces of the head and neck (for example, inside the mouth, the nose, and the throat). These squamous cell cancers are also known as head and neck squamous cell carcinomas. Head and neck cancers can also begin in the salivary glands, but these cancers are uncommon. Salivary glands contain a wide range of cells that can develop into cancer, so there are numerous types of salivary gland cancer.

According to the Coherent Market Insights the Head and Neck Cancer Market Global Industry Insights, Trends, Outlook, and Opportunity Analysis, 2018-2026.

Cancers of the head and neck are further classified based on where they begin in the head or neck. These regions of head and neck cancer are described below and labelled in the image of head and neck cancer regions.

Oral cavity: The lips, the front two-thirds of the tongue, the gums, the lining inside the cheeks and lips, the floor (bottom) of the mouth under the tongue, the hard palate (bony top of the mouth), and the small area of gum behind the wisdom teeth are all part of the oral cavity.

Pharynx: The pharynx (throat) is a 5 inch long hollow tube that begins behind the nose and leads to the oesophagus. It is divided into three sections: the nasopharynx (the upper part of the pharynx, behind the nose); the oropharynx (the middle part of the pharynx, which includes the soft palate [the back of the mouth], the base of the tongue, and the tonsils); and the hypopharynx (the lower part of the pharynx) (the lower part of the pharynx).

Larynx: The larynx, also known as the voicebox, is a short passageway in the neck formed by cartilage just below the pharynx. The vocal cords are housed in the larynx. It also has a small piece of tissue called the epiglottis that moves to cover the larynx and keep food from entering the airways.

Paranasal sinuses and nasal cavity: The paranasal sinuses are tiny hollow spaces in the skull bones that surround the nose. The nasal cavity is the space inside the nose that is hollow.

Salivary glands: The major salivary glands are located in the mouth floor and near the jawbone. Saliva is produced by the salivary glands.

 

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