Head and Neck Cancer

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Hypopharynx Tumors



The hypopharynx is located behind and below the oropharynx. It is not visible by routine office examination. The area consists of three subsites: the pyriform sinuses; the posterior pharyngeal wall, and the postcricoid area.




About 70% of all hypopharyngeal lesions are found in the pyriform sinuses, followed by the posterior pharyngeal wall (about 25%) and the postcricoid area (about 5%). Overall, approximately 3,000 new cases are diagnosed each year, with the...Read the full article