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。

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.

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高分化肺腺癌细胞表面被覆有紊乱多形态微绒毛，低分化的有不规则小皱折。

The result showed that the surface of highly pulmonary adenocarcinoma cells is covered with irregular microvilli and poorly differentiated adenocarcinoma cells is covered with irregular microfoldings.

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