Nasopharyngeal Cancer

The nasopharynx is the upper part of the pharynx (throat) behind the nose. 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. The nostrils lead into the nasopharynx. An opening on each side of the nasopharynx leads into an ear. Nasopharyngeal cancer most commonly starts in the squamous cells that line the oropharynx (the part of the throat behind the mouth).

Anything that increases your risk of getting a disease is called a risk factor. Risk factors may include the following:

• Chinese or Asian ancestry.



• Exposure to the Epstein-Barr virus: The Epstein-Barr virus has been associated with certain cancers, including nasopharyngeal cancer and some lymphomas.

These and other symptoms may be caused by nasopharyngeal cancer. Other conditions may cause the same symptoms. A doctor should be consulted if any of the following problems occur:

• A lump in the nose or neck.



• A sore throat.



• Trouble breathing or speaking.



• Nosebleeds.



• Trouble hearing.



• Pain or ringing in the ear.



• Headaches.

Source: MedicineNet.com
http://www.medicinenet.com/nasopharyngeal_cancer/article.htm