Article first published online: 20 MAR 2013
Copyright © 2012 Wiley Periodicals, Inc.
Volume 26, Issue 4, pages 493–501, May 2013
How to Cite
Abdalla, S., Pierre, S. and Ellis, H. (2013), Calot's triangle. Clin. Anat., 26: 493–501. doi: 10.1002/ca.22170
- Issue published online: 11 APR 2013
- Article first published online: 20 MAR 2013
- Manuscript Accepted: 27 AUG 2012
- Manuscript Revised: 17 AUG 2011
- Manuscript Received: 1 NOV 2010
- Calot's triangle;
- cystic artery;
- cystic duct;
Calot's triangle is an anatomical landmark of special value in cholecystectomy. First described by Jean-François Calot as an “isosceles” triangle in his doctoral thesis in 1891, this anatomical space requires careful dissection before the ligation and division of the cystic artery and cystic duct during cholecystectomy. The modern definition of the boundaries of Calot's triangle varies from Calot's original description, although the exact timing of this change is not entirely clear. The structures within Calot's triangle and their anatomical relationships can present the surgeon with difficulties, particularly when anatomical variations are encountered. Sound knowledge of the normal anatomy of the extrahepatic biliary tract and vasculature, as well as understanding of congenital variation, is thus essential in the prevention of iatrogenic injury. The authors describe the normal anatomy of Calot's triangle and common anatomical anomalies. The incidence of structural injury is discussed, and new techniques in surgery for enhancing the visualisation of Calot's triangle are reviewed. © .