Analysis of carcinoma of the tonsils.

概要

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Tonsillar carcinoma has been very rare in the past in Japan, although it is very common in western countries. Its incidence has, however, increased recently even in Japan. We compared its rate of incidence from 1971 to 1976 with that from 1977 to 1982 in Kyoto University Hospital and found an 18 fold increase. It still accounts for only 15% of Head and Neck cancers in Japan. The total number of patients with Head and Neck cancer were almost the same in these 2 periods. Of all the cases of tonsillar carcinoma 85% were squamous cell carcinoma; malignant lymphoma was the next in frequency. Keratinizing and nonkeratinizing squamous cell carcinoma were reported in equal numbers. Stage IV was most common, followed by stage III. The average age of the patients was 57.7 years, and the male to female ratio was 2 to 1. About 94% of the lesions were in the tonsillar fossa, and most of the rest in the retromolar trigone.
耳鼻咽喉科臨床学会の論文