This may be as simple as a recently diagnosed rectal poorly differentiated adenocarcinoma in the history, or as obvious as an intraoperative finding of a large pancreaticmass that was unresectable.
这可能简单的是近来有诊断为直肠低分化腺癌的病史，或者明显的是在术中发现无法切除的胰腺巨大肿块。
2
Pancreatic head benign mass can generally be divided into tumor and non-tumor lesion.
胰头部良性肿块大致分为肿瘤性和非肿瘤性两大类。
3
The detected mass peaks are helpful for the evaluation of curative effect and prognosis of pancreatic adenocarcinoma.