尽管先进诊断技术不断出现,但胰腺癌的早期诊断仍有不少困难。胰腺癌在确诊时能作切除的病人仍仅有10％～15％。 约70％的病人在疾病的某一时期会出现阻塞性黄疸。而约90％的病人在作出诊断时就已有黄疸。 肿瘤压迫、侵犯胆总管胰腺段引起黄疸最为常见。胰腺体尾部癌黄疸出现率仅为6％,其次,黄疸常由肝门部肿大淋巴结压迫胆总管引起。还有继发于肿瘤肝转移的肝功能损害也可引起黄疸。当黄疸确诊为不能切除的胰癌引起时,就要进一步考虑三个问题:第一,是否黄疸确实继发于梗阻而不是继发于肝内多发 Although advanced diagnostic techniques continue to emerge, there are still many difficulties in the early diagnosis of pancreatic cancer. Patients with pancreatic cancer that can be resected at diagnosis are still only 10% to 15%. About 70% of patients develop obstructive jaundice at certain times of the disease. About 90% of patients have jaundice at the time of diagnosis. Tumor compression and violation of common bile duct pancreas caused jaundice is the most common. The occurrence rate of jaundice in the body and tail of the pancreas is only 6%. Secondly, jaundice is often caused by the enlargement of the hilar lymph nodes and compression of the common bile duct. There are also liver damage secondary to tumor liver metastases that can also cause jaundice. When Astragalus is diagnosed with unresectable pancreatic cancer, three further questions must be considered: First, whether jaundice does indeed occur secondary to obstruction rather than secondary liver multiplex.