Analysis Of Some Colonoscopy And Clinic Characters On Colorectal Adenoma And Carcinoma

ObjectiveColorectal carcinoma include cancer of colon and rectal cancer, and it is a common malignant tumour of digestive tract.Incidence rate of it is increasing.The earlier to diagnose the colorectal carcinoma,the better. To improve the diagonostic level ,and to enhance the preventive consciousness, this study retrospectively analyze the common characteristics of colonoscopy on colorectal adenoma and cancer. MethodThe data of colorectal cancer patients having been examined bycolonoscopy from January 1976 to December 2003 were retrospectively analyzed. It was separated into three groups: A( 1976-1985) , B(1986~1995), C(1996~2003). ResultThe proportion of sex was resemble. In the group A, the proportion of patients aged 40-50 years was 33.5%;In the group B and C, the patients were always more than 50 years old. In the recently decade, the proportion of patients more than 50 years was about 70%.The ratio of cancer in rectum and left colon was declined year after year, from 98.1% to 77.7%;however,the thing about right colon was reverse. In the all groups, adenocarcinoma is more than other cancer. ConclusionThe patients of colorectal cancer were more than past; patients' age was always older than 50 years; Colorectal cancer centralized in rectum and left colon, recently, the ratio of cancer in rectum and left colon was declined, however, the thing about right colon was reverse. Colonoscopy helps to prevent the disease and to depress incidence of the disease.