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目的：探讨原发性十二指肠肿瘤的早期诊断。方法：总结４１例经手术证实的原发性十二指肠肿瘤的术前确诊方法。结果：内窥镜检查确诊率为８２％，特别是十二指肠第１、２段的肿瘤，还可以活检定性。Ｘ线钡餐检查准确率为２８．２％，但对十二指肠第３、４段的肿瘤却有其独到的优点。结论：诊断原发性十二指肠肿瘤应首选内镜检查
Objective: To investigate the early diagnosis of primary duodenal tumors. Methods: To summarize the preoperative diagnosis of 41 cases of primary duodenal tumors confirmed by surgery. Results: The final diagnosis rate of endoscopic examination was 82%, especially in the first and second segments of the duodenum. It could also be confirmed by biopsy. The accuracy rate of X-ray barium meal examination was 28.2%, but it had unique advantages for the tumors of the 3rd and 4th sections of the duodenum. Conclusion: Endoscopic examination should be the first choice for the diagnosis of primary duodenal tumor