대장 및 직장암의 임상적 고찰

Recently, colorectal cancer is one of the major public health problems and the annual incidence has been increased in Korea. We reviewed 175 cases of primary colorectal cancer who were diagnosed at Chungang University Hospital during a 10 year period from January 1982 to December 1991. The ratio of male to female was 1.2:1 and the peak incidence occured in the seventh decade (29.3 %) The location of cancer occurence were rectum (28. 6%), sigmoid colon (26.3%), ascending colon (25. 1%), transverse colon (6.9%), cecum (6.3%) and descending colon (5.7%) in the order of frequency. The most frequent symptoms were abdominal pain in the right sided colon lesions, bowel habit change in the left side colon and rectal lesions. The accuracy of preoperative diagnosis among barium enema (95.4%), sigmoidoscopy or colonoscopy (95. 9%) and computerized tomography (89.6%) was similar. Operation was performed in 86.8% and surgical resection of primary cancer was possible in 88.1% of operation cases. The most common histopathologic type was well differentiated adenocarcinorna(42.3%) and the prevalence of synchronous polyp was 15.4%. According to Dukes' classfication, the distribution was as follows; class A: 1.3%, class B: 48.1%, class C: 35.7%, class D: 14.9%