Calot triangle

Dr Craig Hacking and Dr Amir Rezaee et al.

Calot triangle is a small (potential) triangular space at porta hepatis of surgical importance as it is dissected during the cholecystectomy. Its contents, the cystic artery and cystic duct must be identified before ligation and division to avoid damaging them during the operation. 

Boundries

The triangle is positioned so the apex points towards the liver with the boundaries:

  • right: the cystic duct which is often tortuous and has a beaded appearance, passes downward and to the left to join the common duct
  • left: common hepatic duct
  • superior: the inferior surface of the liver (in the original description by Calot the cystic artery is defined as superior margin)

Contents

Share article

Article Information

rID: 40294
Section: Anatomy
Tag: anatomy
Synonyms or Alternate Spellings:
  • Hepatocystic triangle
  • Calot's triangle

Support Radiopaedia and see fewer ads

Updating… Please wait.
Loadinganimation

Alert accept

Error Unable to process the form. Check for errors and try again.

Alert accept Thank you for updating your details.