当教室4年間の重複癌症例と高齢化

概要

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Cases of malignant tumors of the head and neck during a period of 4 years were analyzed with respect to the relationship of double cancer between its onset in terms of age of onset, family history, smoking and immunological competence was examined. Distribution by site was low in the nasal, paranasal and lingual areas, and was high in the larynx and thyroid gland. Incidence of double cancers was fairly high (8.3%)and age at the onset was about 10 years older than that of the primary tumors of the head and neck. Of 7 patients with double cancers,5 had a family history of cancer and 2 of the 4 patients with laryngeal cancer had a smoking history.<BR>Immunological competence showed decreased activity in 2 of the 3 cases examined. One patient with triple cancer (the stomach, larynx and thyroid gland) had a history of smoking, but had no family history of cancer or decreased immunological competence.
耳鼻咽喉科臨床学会の論文