摘要胰腺癌是消化系统最常见的恶性肿瘤之一，其恶性程度高，预后差，5年总体生存率不足10%。门静脉系统侵犯是胰腺癌远期预后不良的主要危险因素之一，而根治性手术是此类患者获得长期存活的唯一有效手段。我中心依据临床实践，提出了以重建门静脉系统为目的的门静脉系统侵犯胰腺癌的分型标准，并针对不同分型制定了相应的治疗策略，并在临床开展同种异体血管置换的手术，本文就我们的相关临床经验进行总结。

abstractsPancreatic carcinoma is one of the most common digestive malignant tumor. It has a high degree of malignancy and poor prognosis. The overall 5-year survival rate is less than 10%. Portal vein system invasion is one of risk factors for poor long-term prognosis of pancreatic carcinoma, and radical surgery is the only effective way to achieve long-term survival. According to the clinical practice, our center proposed a new classification of pancreatic carcinoma with portal vein system invasion for the purpose of reconstructing the portal vein system. We also formulated treatment strategies for different classification and carried out operation of allogeneic vascular replacement in clinical practice. This paper introduces our relevant clinical experience.