Unusual roentgenologic and clinicopathologic features of villous adenomas of the colon.
Unusual roentgenologic and clinicopathologic features of villous adenomas of the colon.
复制标题
结肠绒毛状腺瘤不寻常的X线学和临床病理学特征。
作者：
J. Kaye;D. Bragg
绒毛状腺瘤是胃肠道的罕见肿瘤，最常见于结肠。它们占所有结肠肿瘤的 1.5-2.5% (1-3) 和大肠息肉样病变的 2-14% (2, 4-5)。它们受到特别关注，因为据报道，浸润性癌的发病率为 8-16% (3, 6-8)，并且与肠道其他恶性肿瘤的关联率为 2.420% (1-2, 5-7, 9-10)。这些绒毛状肿瘤引起了放射科医生的特别兴趣，因为可以通过钡灌肠检查进行精确诊断。自从最初描述了结肠中这些肿瘤的特定放射学外观（11）以来，大多数注意力都集中在大肠中的这种“经典”模式（12-18），而对其非典型外观几乎没有评论。据报道，绒毛状腺瘤在右半结肠中很少见，并且 78-98% 的病例发生在腹膜反射区的远端 (1, 5-6, 19)。仅15个...
Villous adenomas are uncommon tumors of the gastrointestinal tract that occur most frequently in the colon. They comprise 1.5–2.5 per cent of all colonic neoplasms (1–3) and 2–14 per cent of the polypoid lesions of the large bowel (2, 4- 5). They are of special concern because of the reported 8–16 per cent incidence of invasive carcinoma (3, 6–8) and the 2.420 per cent association with other malignant tumors of the intestinal tract (1–2, 5- 7, 9–10). These villous tumors are of particular interest to the roentgenologist because of the possibility of a precise diagnosis on barium enema examination. Since the initial description of a particular radiographic appearance of these neoplasms in the colon (11), most attention has been directed to this “classical” pattern in the large bowel (12–18), with little comment on their atypical appearances. Villous adenomas are reportedly rare in the right half of the colon and occur distal to the peritoneal reflection in 78–98 per cent of cases (1, 5–6, 19). Only 15 inst...