Methods Of the 4 patients,2 had malignant tumor and 2 innocent tumor.Three patients received subtotal pancreas-sparing duodenectomy and 1 of them underwent it below the duodenal papilla.

• 方法对2例恶性肿瘤,2例良性肿瘤,行保留胰腺的十二指肠全切除术3例,乳头以下的十二指肠切除术1例。