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目的：明确食管多原发癌与上消化道重复癌的诊断。方法：对疑有食管、贲门癌的病人行上消化道的全程检查或纤维食管镜及胃镜检查。结果：食管多原发癌５例，上消化道重复癌１１例。结论：食管多原发癌及上消化道重复癌发病率较高，应与复发癌相鉴别。应将全部肿瘤根治性切除。
Objective: To clarify the diagnosis of multiple primary cancer of the esophagus and duplication of upper gastrointestinal cancer. METHODS: Patients with suspected esophageal and cardiac cancers underwent complete gastrointestinal examination or fiberoptic esophagoscopy and gastroscopy. Results: There were 5 cases of multiple primary esophageal cancer and 11 cases of upper gastrointestinal duplication. Conclusion: The incidence of multiple primary esophageal cancer and upper gastrointestinal duplication cancer is high, and should be differentiated from recurrent cancer. All tumors should be radically removed.