@article{oai:nagasaki-u.repo.nii.ac.jp:00020120,
 author = {Shimoyama, Takatoshi and Ishikawa, Hiroshi and Kusano, Hiroyuki and Nakagoe, Tohru and Shimizu, Teruhisa and Komatsu, Hideaki and Sumida, Yorihisa and Matsuo, Seiji and Nishikawa, Kiyoomi and Terada, Ryusuke and Ayabe, Hiroyoshi and Itoh, Shigehiko},
 issue = {3-4},
 journal = {Acta medica Nagasakiensia},
 month = {Dec},
 note = {The prognostic significance of carcinoembryonic antigen (CEA) values in the drainage vein of the tumor (portal blood levels of CEA) of colorectal cancer patients were evaluated by examining the correlation with the peripheral blood levels of CEA and histopathologic findings of the tumor. 1) Portal blood levels of CEA were significantly increased by the operative procedure. Mean values of CEA in portal blood were higher than those in peripheral blood. Portal blood CEA was correlated with Dukes' staging, and revealed higher positive rates than CEA in peripheral blood in each stage. Elevated CEA levels were noted in those who had cancer infiltration extending through the proper muscle layer. There was a close correlation between portal CEA and CEA content in cancerous tissue (ng/g, wet weight) (p<0.05), but no significant correlation between peripheral CEA level and cancerous tissue CEA (r = 0.372). The mean values of portal CEA in aneuploidy were significantly higher than those in diploidy. These findings indicate that circulating CEA in peripheral blood might be influenced by the metabolic process of CEA in the liver as well as cancer progression rather than CEA production of the tumor. 2) The 5 year survival rate of the patient's group with a negative rate of portal CEA (93%) was far better than that with a positive rate (57%). This study suggested that the portal blood level of CEA in colorectal carcinoma may be very useful for assessment of the patient's survival., Acta medica Nagasakiensia. 1996, 41(3-4), p.52-56},
 pages = {52--56},
 title = {Carcinoembryonic Antigen (CEA) in Colorectal Cancer - Prognostic Significance of Portal Blood Level -},
 volume = {41},
 year = {1996}
}