Home > Encyclopedia of Cancer > Oropharyngeal Cancer

Definition

Oropharyngeal cancer is an uncontrolled growth of cells that begins in the oropharynx, the area at the back of the mouth.

Description

The oropharynx is the passageway at the back of the mouth. It connects the mouth to the esophagus (tube through which food passes) and to the pharynx (the channel for the flow of air into and out of the lungs). It takes its name from the way it ties the oral cavity (hence the oro) to the rest of the pharynx, one part of which extends toward the back of the nose (nasopharynx). The base of the tongue, the soft palate (the soft roof of the mouth, above the base of the tongue) and the tonsils are part of the oropharynx.

If the oropharynx is blocked or injured...