重复癌最初由 Billroth 报告,近几年来报告较多,其发现率在增加。作者收集了1975～1985年间耳鼻咽喉科和口腔外科(后称头颈部)的恶性肿瘤382例,按 Warren & Gates 氏诊断标准,发现患重复癌者35例(9.2％),其中双重癌31洌(8.1％),占重复癌的88.6％; Duplicate cancer was originally reported by Billroth and has been reported in more recent years. The rate of discovery has increased. The authors collected 382 cases of malignant tumours in the Department of Otolaryngology and Oral Surgery (hereinafter referred to as the head and neck) from 1975 to 1985. According to the diagnostic criteria of Warren & Gates, 35 cases (9.2%) of patients with Duplicate Cancer were found.洌 (8.1%) accounted for 88.6% of repeated cancers;