Image Based Question – 73107

Which of the following is not a boundary of given image:

A. Common hepatic duct

B. Cystic duct

C. Inferior surface of the liver.

D. Gall bladder

Correct Answer » D Explanation

Answer D. Gall bladder

CALOT’S TRIANGLE

• Calot’s triangle (cystohepatic triangle) is a small anatomical space in the abdomen.
• It is located at the porta hepatis of the liver – where the hepatic ducts and neurovascular structures enter/exit the liver.

The borders are as follows:

1. Medial – common hepatic duct.

2. Inferior – cystic duct.

3. Superior – inferior surface of the liver.

• The above differ from the original description of Calot’s triangle in 1891 – where the cystic artery is given as the superior border of the triangle.
• The modern definition gives a more consistent border (the cystic artery has considerable variation in its anatomical course and origin).