What is Hypopharyngeal Cancer?
Cancers of the head and neck are typically categorized by the area of the body in which they start, typically inside the mouth, the nose, and the throat. Head and neck cancers make up approximately 4% of all cancers in the United States, and rates are on the rise.
Hypopharyngeal cancer is a type of throat cancer that occurs in the hypopharynx, the bottom part of the pharynx (throat) that connects to the esophagus. The hypopharynx is located behind and beside the larynx (voice box) and extends down to the entrance of the esophagus.
Key Points about Hypopharyngeal Cancer
- Hypopharyngeal cancer arises in the hypopharynx, the lower part of the throat that’s located behind the pharynx, which includes the piriform sinuses, the postcricoid area (a funnel-shaped area in the hypopharynx that extends from the arytenoid cartilages to the bottom of the cricoid cartilage), and the posterior pharyngeal wall.
- Most hypopharyngeal cancers are squamous cell carcinomas originating in the thin, flat cells lining the hypopharynx.
Risk Factors
- Tobacco Use: Smoking cigarettes, cigars, or pipes and using smokeless tobacco products significantly increases the risk.
- Alcohol Consumption: Heavy and chronic alcohol consumption is a major risk factor, especially when combined with tobacco use.
- Poor Nutrition: Diets low in vitamins and minerals, particularly vitamins A and E, can increase the risk.
- Age: The risk increases with age, with most cases occurring in people over the age of 50.
- Gender: Men are more likely to develop hypopharyngeal cancer than women.
- Gastroesophageal Reflux Disease (GERD): Chronic acid reflux can irritate the lining of the throat and contribute to cancer development.
- Human Papillomavirus (HPV) Infection: Certain strains of HPV, particularly HPV-16, have been linked to an increased risk.
- Occupational Exposures: Exposure to certain chemicals and substances, such as asbestos and synthetic fibers, can increase risk.
- Genetic Factors: A family history of head and neck cancers can indicate a genetic predisposition to developing hypopharyngeal cancer.
- Radiation Exposure: Previous radiation therapy to the head and neck area for other cancers can increase the risk.
- Plummer-Vinson Syndrome: This rare condition, which includes iron-deficiency anemia, esophageal webs, and dysphagia (difficulty swallowing), is associated with a higher risk.
Preventive measures include avoiding tobacco and alcohol, maintaining a healthy diet, managing GERD, and getting vaccinated against HPV. Regular medical check-ups and monitoring for any persistent throat symptoms are also important for early detection.