Dr. Charles "Pat" Davis, MD, PhD, is a board certified Emergency Medicine doctor who currently practices as a consultant and staff member for hospitals. He has a PhD in Microbiology (UT at Austin), and the MD (Univ. Texas Medical Branch, Galveston). He is a Clinical Professor (retired) in the Division of Emergency Medicine, UT Health Science Center at San Antonio, and has been the Chief of Emergency Medicine at UT Medical Branch and at UTHSCSA with over 250 publications.
Jay W. Marks, MD, is a board-certified internist and gastroenterologist. He graduated from Yale University School of Medicine and trained in internal medicine and gastroenterology at UCLA/Cedars-Sinai Medical Center in Los Angeles.
The larynx is the voice box located at the top of the windpipe (trachea).
Cancer of the larynx occurs most often in people over the age of 55 years.
People who stop smoking can greatly reduce their risk of cancer of the larynx.
Painless hoarseness can be a symptom of cancer of the larynx.
The larynx can be examined with a viewing tube called a laryngoscope.
Treatment of cancer of the larynx depends on the location and size of the tumor as well as the age and health of the patient.
Cancer of the larynx usually is treated with radiation therapy or surgery. Chemotherapy can also be used for cancers that have spread beyond the larynx.
What is the throat cancer?
Throat cancer is a general term that usually refers to cancer of the pharynx and/or larynx. Regions included when considering throat cancer include the nasopharynx, oropharynx, hypopharynx, glottis, supraglottis and subglottis; about half of throat cancers develop in the larynx and the other half in the pharynx. Consequently, any cancers (growth and/or spread of abnormal cells that form tumors or metastasize) that develop in these regions of the throat are considered throat cancers.
Some investigators consider throat cancers a subset of esophageal cancers. For this article, only throat cancers will be discussed. Esophageal cancers include additional potential symptoms of burning or pain (pressure) in the throat and/or chest pain since they can extend from just below the pharynx to the junction of the esophagus and stomach. Moreover, esophageal cancers may include all of the throat cancer signs, symptoms, and most diagnostic and treatment protocols discussed in this article -- particularly when they are located high in the esophagus.
Dysphagia is the medical term for difficulty swallowing. When dysphagia is mild, it may cause an individual only to stop eating for a minute or less, but when it is severe, it can prevent an individual from taking in enough calories for adequate nutrition. Dysphagia has many causes.
First, there may be physical (anatomical) obstruction to the passage of food.
Second, there may be abnormalities in the function of the nerves of the brain, throat, and esophagus whose normal function is necessary to coordinate swallowing.
Finally, there also may be abnormalities of the muscles of the throat and esophagus themselves.