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©2014 Baishideng Publishing Group Co., Limited. All rights reserved.
World J Gastroenterol. Mar 21, 2014; 20(11): 3050-3055
Published online Mar 21, 2014. doi: 10.3748/wjg.v20.i11.3050
Published online Mar 21, 2014. doi: 10.3748/wjg.v20.i11.3050
Classifying extrahepatic bile duct metachronous carcinoma by de novo neoplasia site
Hyung Jun Kwon, Sang Geol Kim, Yoon Jin Hwang, Department of Surgery, Kyungpook National University Medical Center, Daegu 702-210, South Korea
Jae Min Chun, Department of Surgery, School of Medicine, Kyungpook National University, Daegu 700-721, South Korea
Author contributions: Kwon HJ was the first author and composed the majority of the manuscript; Chun JM prepared the literature review; Hwang YJ designed and coordinated the study and helped to draft the manuscript; Kim SG was the corresponding author and performed the surgery in addition to initiating and guiding the program of disease classification in the study; all authors have read and approved the final manuscript.
Supported by Kyungpook National University Research Fund, 2013
Correspondence to: Sang Geol Kim, MD, Department of Surgery, Kyungpook National University Medical Center, 807 Hogukno, Buk-gu, Daegu 702-210, South Korea. ksg@knu.ac.kr
Telephone: +82-53-2002703 Fax: +82-53-2002027
Received: October 1, 2013
Revised: December 4, 2013
Accepted: January 3, 2014
Published online: March 21, 2014
Processing time: 167 Days and 17.7 Hours
Revised: December 4, 2013
Accepted: January 3, 2014
Published online: March 21, 2014
Processing time: 167 Days and 17.7 Hours
Core Tip
Core tip: The cases of metachronous double bile duct cancer described emphasize the importance of differentiating this condition from a loco-regional recurrence. It is not a progression of the initial tumor but rather a new tumor. Therefore, it may have a good prognosis. The cases that have been reported thus far have shown a favorable prognosis. Tumor classification may be valuable during the long-term follow up after the initial surgery because it allows prediction of the potential site and proper surgical methods for the new tumors. Diagnosing these tumors and classifying their patterns may allow physicians the opportunity to cure the disease.