Smith T R
Radiology. 1975 Jun;115(3):593-6. doi: 10.1148/15.3.593.
Malignant colonic polyps on substantial stalks were seen in 3 patients. In each case the base of the pedicle was free of tumor. The author suggests that these were initially benign adenomatous polyps but subsequently became malignant. These findings suggest that initially benign colonic polyps can become malignant over a period of time and that the presence of a substantial stalk may not always be pathognomonic of benignity.
3例患者可见带粗蒂的恶性结肠息肉。在每例中，蒂的基部均无肿瘤。作者认为这些息肉最初是良性腺瘤性息肉，但随后恶变。这些发现表明，最初为良性的结肠息肉可在一段时间后恶变，而且粗蒂的存在并不总是良性的特征性表现。
