Which structure normally lies within the boundaries of Calot's triangle as classically described?
- A Cystic artery ✓
- B Right gastric artery
- C Gastroduodenal artery
- D Left hepatic artery
Correct answer: A. Cystic artery
Explanation
The classic Calot triangle is bounded by the cystic duct inferiorly, the common hepatic duct medially, and the inferior surface of the liver superiorly, and it contains the cystic artery, the cystic lymph node of Mascagni, and connective tissue. The gastroduodenal artery arises from the common hepatic artery behind the first part of the duodenum, well outside the triangle. The right gastric artery runs along the lesser curvature of the stomach.
Reference: Bailey and Love's Short Practice of Surgery, 27th ed.
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