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Cancer of the Larynx - SEER Survival Monograph

Source: seer.cancer.gov
Topic: Larynx
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Sort Desciption: The larynx, positioned in the neck slightly below the point where the pharynx divides into separate respiratory and digestive tracts, is critical to breathing, swallowing, and speaking. ...

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The larynx, positioned in the neck slightly below the point where the pharynx divides into separate respiratory and digestive tracts, is critical to breathing, swallowing, and speaking. The glottis is the portion of the larynx where the vocal cords are located. The area above the vocal cords is referred to as the supraglottis and that below the vocal cords as the subglottis. This chapter provides survival analyses for 14,950 histologically confirmed adult cases of cancer of the larynx. Cases were obtained from the Surveillance, Epidemiology, and End Results (SEER) Program of the National Cancer Institute (NCI). Cancer of the larynx is second only to oral cavity cancer as the most common cancer of the upper aerodigestive tract (1). Tobacco and alcohol use are widely recognized as the key causative factors for many of these tumors (2). The cell type of origin for the vast majority of these tumors is squamous cell (3). MATERIAL AND METHODS The NCI contracts with medically oriented nonprofit institutions, such as universities and state health departments, to obtain data on all cancers diagnosed in residents of the SEER geographic areas. SEER collects data on all invasive and in situ cancers except basal cell and squamous cell carcinomas of the skin and in situ carcinoma of the uterine cervix. SEER selects participating institutions on the basis of two criteria: their ...

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