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Ann Geriatr Med Res > Volume 14(3); 2010 > Article
Journal of the Korean Geriatrics Society 2010;14(3):147-154.
DOI: https://doi.org/10.4235/jkgs.2010.14.3.147    Published online September 30, 2010.
Distinct Characteristics of Colorectal Cancer and Frequency of Right Colon Cancer in Elderly Patients of Korea
Ji Yeon Kim, Eun Sun Jang, So Youn Park, Ju Hee Park, Hyuk Yoon, Young Soo Park, Nayoung Kim, Dong Ho Lee, Hyun Chae Jung, In Sung Song
1Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea.
2Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea. dhljohn@snubh.org
한국 고령환자에서의 대장암의 특징 및 우측대장암의 빈도
김지연1,장은선1,박소연1,박주희1,윤 혁1,박영수2,김나영2,이동호2,정현채1,송인성1
서울대학교 의과대학 내과학교실 및 간연구소1, 분당서울대학교병원 내과학교실2
The incidence of colorectal cancer in elderly is on the rise as colorectal cancer is increasing in prevalence. To come up with a proper screening guideline for the elderly, we collected basic data by comparing the clinical characteristics of colorectal cancer of younger patients with those of elderly patients.
A total of 899 patients diagnosed with primary colorectal cancer at Seoul National University Bundang Hospital between May 2003 and January 2009 were enrolled. Operative and pathologic reports, colonoscopic records, and case notes of each patient were reviewed. Tumors located in cecum, ascending colon and transverse colon were classified as right colon cancer.
The median age of the patients was 61.4 years old (range, 27 to 87). Of the 899 enrolled patients, 369 (41.0%) were 65 years old or older (older group). The Colon cancer affected a higher proportion of the older group than the young group (29.0% vs. 21.1%, p=0.007) while mucinous adenocarcinoma was found significantly more often in the young group when compared with the older group (2.2% vs. 5.9%, p=0.007). Hemoglobin level at diagnosis was also lower in the older group compared to the young group (mean+/-SD, 12.2+/-2.45 vs. 13.0+/-2.28, p<0.001). In addition, there was a female predominance in right colon cancer in terms of gender (28.7% vs. 21.5%, p=0.014).
In overall analyses, right colon cancer was more common in elderly and female patients. Total colonoscopic surveillance should be considered for the early detection of cancerous lesions in elderly and female patients.
Key Words: Colorectal cancer, Aged, Characteristics
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