Changing Site Distribution of Colorectal Cancer in Japan

Takada, Hideho; Ohsawa, T; Iwamoto, Shigeyoshi; Yoshida, Ryo; Nakano, Masataka; Imada, Seiki; Yoshioka, Kazuhiko; Okuno, Masashi; Masuya, Y; Hasegawa, Kenji; Kamano, Naoko; Hioki, Koshiro; Muto, Tetsuichiro; Koyama, Yasuo

doi:10.1007/s10350-004-6400-0

Cited by 89 publications

(75 citation statements)

References 24 publications

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“…In Japan this shift was seen due to a decrease in the incidence of rectal cancer. [15,16] The influence of age of the patients on the subsite of the tumor was studied and it was found that incidence of colonic tumors was more followed by rectal and rectosigmoid tumors under each category of age groups considered and this association was statistically significant (p value <0.05). Also, as the age advanced, percentage of colonic and rectosigmoid carcinomas increased, while no such trend was seen in rectal cancers.…”

Section: Discussionmentioning

confidence: 99%

Colorectal Carcinoma: Histopathological Analysis and Changing Trends in Various Parameters

Munjal¹

2016

jmscr

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Section: Discussionmentioning

confidence: 99%

Colorectal Carcinoma: Histopathological Analysis and Changing Trends in Various Parameters

Munjal¹

2016

jmscr

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“…17 This has been noted worldwide in diverse populations. [21][22][23][24][25][26][27][28][29] In our Jewish population, over the last 3 decades we had observed a pattern of an initial increase in rectal cancer incidence in the lowest-risk population of Asian-African origin, followed by a decreasing incidence both in them and the high-risk European Jews. There is now a merged plateau incidence level of all long-term immigrant groups and Israel-born.…”

Section: Discussionmentioning

confidence: 99%

The changing incidence and sites of colorectal cancer in the Israeli Arab population and their clinical implications

Rozen

Rosner²,

Liphshitz

et al. 2006

Intl Journal of Cancer

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Israeli Arabs have been at low risk for colorectal cancer (CRC) and had mainly proximal cancer, but increasing CRC is now noted. We examined this trend and CRC site and compared them to the total Jewish population and to the low-risk Jews of AsianAfrican origin. Israel Cancer Registry CRC data, 1982 Arabs and Jews was computed by gender, age and site: rectal cancer included recto-sigmoid junction; ''right-sided'' CRC included the proximal colon up to and also the splenic flexure.

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“…In developed countries, the incidence of proximal colon cancer increases with a time trend [4][5][6] . Furthermore, proximal shift of colorectal cancer is observed in the aged population [7][8][9][10][11] .…”

Section: Discussionmentioning

confidence: 99%

“…Recently, the incidence of colorectal cancer has been increasing remarkably in Japan and China, and nearly 37 000 deaths per year occur in Japan [2,3] . In these countries, there is a proximal shift in the subsite distribution of colorectal cancer [4][5][6] , which is associated with increase in age [7][8][9][10][11] . To reduce the high incidence, screening of colorectal cancer in asymptomatic individuals has been advocated [12][13][14] .…”

Section: Introductionmentioning

confidence: 99%

Rectosigmoid findings are not associated with proximal colon cancer: Analysis of 6196 consecutive cases undergoing total colonoscopy

Okamoto

Kawabe²,

Yamaji³

et al. 2005

WJG

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AIM:To review the risk of proximal colon cancer in patients undergoing colonoscopy. METHODS:We estimated the risk of advanced proximal adenomas and cancers in 6 196 consecutive patients that underwent colonoscopy (mean age 60 years, 65% males, without prior history of colorectal examination). Neoplasms were classified as diminutive adenoma (5 mm or less), small adenoma (6-9 mm), advanced adenoma (10 mm or more, with villous component or high-grade dysplasia) and cancer (invasive adenocarcinoma). The sites of neoplasms were defined as rectosigmoid (rectum and sigmoid colon) and proximal colon (from cecum to descending colon). RESULTS:The trend of the prevalence of advanced proximal adenoma was to increase with severe rectosigmoid findings, while the prevalence of proximal colon cancer did not increase with severe rectosigmoid findings. Among the 157 patients with proximal colon cancer, 74% had no neoplasm in the rectosigmoid colon. Multivariate logisticregression analysis revealed that age was the main predictor of proximal colon cancer and existence of rectosigmoid adenoma was not a predictor of proximal colon cancer. CONCLUSION:Sigmoidoscopy is inadequate for colorectal cancer screening, especially in older populations.

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Changing Site Distribution of Colorectal Cancer in Japan

Cited by 89 publications

References 24 publications

Colorectal Carcinoma: Histopathological Analysis and Changing Trends in Various Parameters

Colorectal Carcinoma: Histopathological Analysis and Changing Trends in Various Parameters

The changing incidence and sites of colorectal cancer in the Israeli Arab population and their clinical implications

Rectosigmoid findings are not associated with proximal colon cancer: Analysis of 6196 consecutive cases undergoing total colonoscopy

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