World Library  
Flag as Inappropriate
Email this Article

Cystohepatic triangle

Article Id: WHEBN0005915082
Reproduction Date:

Title: Cystohepatic triangle  
Author: World Heritage Encyclopedia
Language: English
Subject: Abdomen, List of human anatomical parts named after people, Supravesical fossa, Recto-uterine fold, Medial inguinal fossa
Publisher: World Heritage Encyclopedia

Cystohepatic triangle

Cystohepatic triangle
The cystic artery branches from the right hepatic artery.
Relationship to other vessels.
Latin trigonum cystohepaticum
Anatomical terminology

The hepatobiliary triangle (or cystohepatic triangle) is an anatomic space bordered by the common hepatic duct medially, the cystic duct laterally and inferior border of liver /cystic artery superiorly.[1]


Another name used to refer to this region is Calot's Triangle. It is named for Jean-François Calot.[2][3] Of note, Calot's original description of the triangle in 1891 included the cystic duct, the common hepatic duct, and the cystic artery (not the inferior border of the liver as is commonly believed).[4] The Hepatocystic triangle is the area bound by the cystic duct, common hepatic duct, and the liver margin.[5]

Clinical significance

General surgeons frequently quiz medical students on this term and the name for the lymph node located within the triangle, Mascagni's lymph node or Lund's node, however many often erroneously refer to it as "Calot's node." The latter is frequently enlarged due to inflammation of the gallbladder (e.g. cholecystitis) or the biliary tract (e.g. cholangitis) and may be removed along with the gallbladder during surgical treatment (cholecystectomy).

Calot's triangle, containing the cystic artery, may also contain an accessory right hepatic artery or anomalous sectoral bile ducts. As a result dissection in the triangle of Calot is ill-advised until the lateral-most structures have been cleared and identification of the cystic duct is definitive. According to SESAP 12 (produced and distributed by the American College of Surgeons) dissection in the triangle of Calot is the most common cause of common bile duct injuries.


  1. ^ Haubrich, W (November 2002). "Calot of the triangle of Calot". Gastroenterology 123 (5): 1440.  
  2. ^ synd/4023 at Who Named It?
  3. ^ J. F. Calot. De la cholécystectomie. Doctoral thesis, Paris, 1891.
  4. ^ Haubrich WS (2002). "Calot of the triangle of Calot". Gastroenterology 123 (5): 1440.  
  5. ^ Schwartz's Manual of Surgery BRUNICARDI C.F 10th edition

6. Bailey & Love's Short Practice of Surgery 26th edition (see page 1098).

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.

Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.