Summary
The malignant potential of large-intestinal adenomas varies with size, histologic type, and grade of epithelial atypia in the same way in England and in Japan. Adenomas in England have greater malignant potential than those in Japan because they grow larger and more often show a villous growth pattern. Although the adenomacarcinoma sequence operates in the same way in the two countries, it is suggested that the higher incidence of colorectal cancer in England is due to the greater prevalence as well as the greater size of English adenomas. More studies of the epidemiology and geographic pathology of large-intestinal adenomas are needed to clarify their importance as a predisposing cause of colorectal cancer in low-risk as well as high-risk areas.
Similar content being viewed by others
References
Arminski TC, McLean DW: Incidence and distribution of adenomatous polyps of the colon and rectum based on 1,000 autopsy examinations. Dis Colon Rectum 7: 249, 1964
Berg JW, Howell MA: The geographic pathology of bowel cancer. Cancer (suppl) 34: 807, 1974
Burkitt DP, Walker AR, Painter NS: Effect of dietary fibre on stools and transit-times, and its role in the causation of disease. Lancet 2: 1408, 1972
Correa P, Duque E, Cuello C, et al: Polyps of the colon and rectum in Cali, Colombia, Int J Cancer 9: 86, 1972
Histological Typing of Intestinal Tumours (1976). International Histological Classification of Tumours, World Health Organization (in press)
Morson BC, Bussey HJ: Predisposing causes of intestinal cancer. Curr Probl Surg (Feb) 1970 pp 1–50
Morson BC, Dawson IM: Gastrointestinal Pathology, Oxford, Blackwell Scientific Publications, 1972, 676 pp
Muto T, Bussey HJ, Morson BC: The evolution of cancer of the colon and rectum. Cancer, 36: 2251–2270, 1975
Potet F, Soullard J: Polyps of the rectum and colon. Gut 12: 468, 1971
Sato E: Adenomatous polyps of large intestine in autopsy and surgical material. Gann 65: 295, 1974
Segi M, Kurihara M: Cancer Mortality for selected sites in 24 countries. No. 6 (1966–1967). Tokyo, Japan Cancer Society, 1972
Author information
Authors and Affiliations
About this article
Cite this article
Muto, T., Ishikawa, K., Kino, I. et al. Comparative histologic study of adenomas of the large intestine in Japan and England, with special reference to malignant potential. Dis Colon Rectum 20, 11–16 (1977). https://doi.org/10.1007/BF02587445
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02587445