During laparoscopic cholecystectomy, the cystic lymph node (node of Lund) lies within Calot's triangle. The boundaries of Calot's triangle as originally described, and as used surgically today, are formed by:

• A Cystic duct superiorly, common bile duct medially, and duodenum inferiorly
• B Cystic duct inferiorly, common hepatic duct medially, and the liver surface superiorly ✓
• C Right hepatic artery superiorly, portal vein posteriorly, and cystic duct inferiorly
• D Common hepatic duct superiorly, cystic artery laterally, and liver surface inferiorly

Explanation

The modern surgical definition of Calot's triangle uses the cystic duct inferiorly, the common hepatic duct medially, and the inferior surface of the liver superiorly. Calot's original description used the lower edge of the cystic artery rather than the liver, but Indian exam convention follows the current surgical definition. The cystic lymph node of Lund sits within this triangle, and dissection here must proceed carefully because the right hepatic artery may course through the triangle close to the cystic duct.

Reference: Bailey and Love's Short Practice of Surgery, 28th ed.

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Written and medically reviewed by the StethoPrep medical team.