A total of 168 cases of cancer of the tongue base-vallecula, tonsil-tonsillar fossa, and hypopharyngeal area were studied to determine their respective survival rates. The tongue base-vallecula area was involved in 40 cases with a three-year survival rate of 26% and a five-year rate of 22%. In the 41 cases of tonsil-tonsillar fossa lesions, three-year survival rates were 22% and five-year survivals were 6%. Among the 87 patients with lesions of the hypopharynx three-year and five-year survival rates were 14% and 8%, respectively.
Truluck CH, Putney FJ. Survival Rates in Cancer of the Tongue, Tonsil, and Hypopharynx. Arch Otolaryngol. 1971;93(3):271–274. doi:10.1001/archotol.1971.00770060409008
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