Skucas J, Spataro R F, Cannucciari D P
Radiology. 1982 May;143(2):335-40. doi: 10.1148/radiology.143.2.7071335.
The commonly accepted criteria for colon malignancy were investigated in malignant and benign polyps smaller than 3 cm in diameter. It was found that most small tumors, both benign and malignant, were sessile and smooth in outline. It was only when the polyps increased in size that their outlines became lobulated or irregular. A stalk was not seen in polyps smaller than 1 cm in diameter. Retraction at the base of a cancer was likewise not seen in these small lesions. The typical malignant characteristics became apparent only when the polyp had grown to 2 to 3 cm in diameter.
对直径小于3厘米的恶性和良性息肉进行了研究，以探讨结肠癌公认的标准。结果发现，大多数小型肿瘤，无论是良性还是恶性，均呈无蒂状且轮廓光滑。只有当息肉增大时，其轮廓才会变得呈分叶状或不规则。直径小于1厘米的息肉未见有蒂。在这些小病变中同样未见癌基底部有回缩。只有当息肉直径长到2至3厘米时，典型的恶性特征才会显现出来。
