RADIATION INDUCED CANCERS IN THE HYPOPHARYNX

Abstract

In recent practice, the authors experienced three cases of radiation induced cancer in the hypopharynx. Primary diseases irradiated previously were tuberculous cervical lymphadenitis. All three cases were treated with pharyngo-laryngo-esophagectomy.
The characteristic feature of the radiation cancer in recent years are as follows:
(1) Interval between irradiation and development of cancer in the hypopharynx showed about half a century, an average of 47 years.
(2) Neck scar due to irradation with this cancer was not so marked.