Poorly differentiated regions were defined strictly as those with no glandular structure. Grade categories were based on the total area of poorly differentiated cells, as viewed under a microscope ...

The incidence of lymph node metastasis was significantly higher in lesions featuring poorly differentiated/mucinous adenocarcinoma, submucosal invasion ≥ 1800 μm, vascular invasion, and high ...

The endoscopic biopsies showed the colon infiltration by a poorly differentiated adenocarcinoma. The advanced complicated malignant disease and the medical history of the patient led to the ...