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Cancer Health Center

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Oropharyngeal Cancer Treatment (PDQ®): Treatment - Patient Information [NCI] - General Information About Oropharyngeal Cancer

Oropharyngeal cancer is a disease in which malignant (cancer) cells form in the tissues of the oropharynx.

The oropharynx is the middle part of the pharynx (throat) behind the mouth, and includes the back one-third of the tongue, the soft palate, the side and back walls of the throat, and the tonsils. The pharynx is a hollow tube about 5 inches long that starts behind the nose and ends at the top of the trachea (windpipe) and esophagus (the tube that goes from the throat to the stomach). Air and food pass through the pharynx on the way to the trachea or the esophagus.
cdr0000713970.jpg
Anatomy of the pharynx (throat). The three parts of the pharynx are the nasopharynx, oropharynx, and hypopharynx.

Most oropharyngeal cancers are squamous cell carcinomas. Squamous cells are the thin, flat cells that line the inside of the oropharynx.

Oropharyngeal cancer is a type of head and neck cancer.

Use of tobacco products and drinking too much alcohol can increase the risk of oropharyngeal cancer.

Anything that increases your risk of getting a disease is called a risk factor. Having a risk factor does not mean that you will get cancer; not having risk factors doesn't mean that you will not get cancer. Talk with your doctor if you think you may be at risk. Risk factors for oropharyngeal cancer include the following:

  • Smoking and chewing tobacco.
  • Heavy alcohol use.
  • A diet low in fruits and vegetables.
  • Drinking maté, a stimulant drink common in South America.
  • Chewing betel quid, a stimulant commonly used in parts of Asia.
  • Being infected with human papillomavirus (HPV).

Signs and symptoms of oropharyngeal cancer include a lump in the neck and a sore throat.

These and other signs and symptoms may be caused by oropharyngeal cancer or by other conditions. Check with your doctor if you have any of the following:

  • A sore throat that does not go away.
  • A dull pain behind the breastbone.
  • Cough.
  • Trouble swallowing.
  • Weight loss for no known reason.
  • Ear pain.
  • A lump in the back of the mouth, throat, or neck.
  • A change in voice.
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