Calot’s Triangle Anatomy | Boundaries, Contents and Surgical Importance

Calot’s triangle is an important anatomical region encountered during cholecystectomy. Its original boundaries are the cystic duct, common hepatic duct and cystic artery. The modern hepatocystic triangle is bounded by the cystic duct inferiorly, common hepatic duct medially and inferior surface of the liver superiorly.
The triangle commonly contains the cystic artery, cystic lymph node of Lund, lymphatics and connective tissue. Anatomical variations may include an accessory hepatic duct or an aberrant right hepatic artery. Careful dissection and achievement of the critical view of safety help prevent bile-duct and vascular injuries during gallbladder surgery.