Question
Which of the statements regarding Calot’s triangle are correct?
1. Common hepatic duct forms the medial boundary of the Calot’s triangle
2. Inferior surface of the right lobe of the liver forms the superior boundary of Calot’s triangle
3. Right hepatic artery is usually found as a content of the Calot’s triangle
4. Cystic duct and medial border of gall bladder forms the lateral border of Calot’s triangle
Select the correct answer using the code given below:
1. Common hepatic duct forms the medial boundary of the Calot’s triangle
2. Inferior surface of the right lobe of the liver forms the superior boundary of Calot’s triangle
3. Right hepatic artery is usually found as a content of the Calot’s triangle
4. Cystic duct and medial border of gall bladder forms the lateral border of Calot’s triangle
Select the correct answer using the code given below:
| A. |
1, 2 and 3 |
| B. |
2, 3 and 4 |
| C. |
1, 3 and 4 |
| D. |
1, 2 and 4 |
Show Answer
|
Correct Answer » D Explanation |
 |
Calot’s Triangle (Cystohepatic Triangle)
Calot’s triangle is an important surgical landmark identified during:
- Open cholecystectomy
- Laparoscopic cholecystectomy
Proper identification helps avoid:
- Common bile duct injury
- Hepatic artery injury
Statement-wise Analysis
1. Common hepatic duct forms the medial boundary
Correct
The:
Common hepatic duct
forms the medial boundary of Calot’s triangle.
2. Inferior surface of the right lobe of the liver forms the superior boundary
Correct
The:
Inferior (visceral) surface of the liver
forms the superior boundary.
3. Right hepatic artery is usually found as a content of Calot’s triangle
Incorrect
The:
Cystic artery
is the usual and important arterial content of Calot’s triangle.
Although the:
Right hepatic artery may occasionally traverse the triangle
(Moynihan’s hump/caterpillar hump),
it is:
- Variable
- Not a constant or usual content
Therefore statement 3 is incorrect.
4. Cystic duct and medial border of gallbladder form the lateral boundary
Correct
The lateral boundary is formed by:
- Cystic duct
- Adjacent gallbladder neck/medial gallbladder border
Thus statement 4 is accepted as correct in modern surgical description.