我们对累及肠系膜上静脉的胰头癌 2例作了合并肠系膜上静脉 (ＳＭＶ)部分切除的胰十二指肠切除术 ,现报告如下。1　临床资料例 1,男性 ,6 4岁。因纳差 1个月 ,皮肤巩膜黄染1周于 1996年 3月 18日入院 ,经Ｂ超、ＣＴ等检查提示胰头占位 ,彩色多普勒未探及胰头周围血管椎压变形。 We performed pancreaticoduodenectomy with partial removal of superior mesenteric vein (SMV) in 2 patients with pancreatic head cancer involving the superior mesenteric vein. The report is as follows. 1 clinical data, 1 male, 6 4 years old. In 1 month of analgesia, skin and sclera were dyed for 1 week on March 18, 1996. After examination with ultrasound and CT, the head of the pancreas was occupied. Color Doppler was not detected and the vessels surrounding the pancreatic head were deformed by vertebral pressure.