During a laparoscopic cholecystectomy, the surgeon must carefully identify and dissect the 'Triangle of Calot' to ensure safe ligation of the cystic artery and cystic duct. What anatomical structures form the boundaries of the original Triangle of Calot?

Answer and explanation

Correct answer: D. Cystic duct, Common hepatic duct, and the Inferior surface of the liver

  1. Step 1: The anatomic boundaries of the hepatobiliary triangle (Calot's triangle) are: the cystic duct inferiorly, the common hepatic duct medially, and the inferior visceral surface of the liver superiorly.
  2. Step 2: The cystic artery traverses within this triangle.
  3. Step 3: Dissection within Calot's triangle to achieve the 'Critical View of Safety' is essential to prevent catastrophic common bile duct injury.
  4. Step 4: Identify the boundaries of Calot's triangle.
Answer
Cystic duct, Common hepatic duct, and the Inferior surface of the liver.
Why not the others: 'Cystic duct, Common bile duct, and Portal vein' includes deep vascular retroperitoneal structures; 'Falciform ligament' is on the anterior abdominal liver surface; 'Celiac trunk and Gastroduodenal artery' are positioned behind the stomach and duodenum.

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