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 pancreatic mass 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。
Colonoscopic views of another ulcerating mass, a rectal adenocarcinoma, are seen below.
直肠腺癌的结肠镜检图显示溃疡型肿块。
Colonoscopic views of another ulcerating mass, a rectal adenocarcinoma, are seen below.
直肠腺癌的结肠镜检图显示溃疡型肿块。
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