Question 1: 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:
- A. 1, 2 and 3
- B. 1, 3 and 4
- C. 2, 3 and 4
- D. 1, 2 and 4 (Correct Answer)
Explanation: ***1, 2 and 4***
- The **common hepatic duct** indeed forms the medial boundary, the **inferior surface of the right lobe of the liver** forms the superior boundary, and the **cystic duct along with the medial border of the gallbladder** forms the lateral boundary of Calot's triangle.
- The **cystic artery** is typically a content of Calot's triangle [1], not the right hepatic artery.
*1, 2 and 3*
- While statements 1 and 2 are correct regarding Calot's triangle boundaries, statement 3 is incorrect as the **cystic artery**, not the right hepatic artery, is the usual content [1].
- The **right hepatic artery** typically branches off the proper hepatic artery superior to Calot's triangle, or runs *posterior* to this triangle, not within it [1].
*1, 3 and 4*
- Statements 1 and 4 are correct descriptions of the boundaries of Calot's triangle. However, statement 3 is incorrect because the **right hepatic artery** is generally not found within Calot's triangle [1].
- The typical content found within this triangle is the **cystic artery**, which supplies the gallbladder [1].
*2, 3 and 4*
- Statements 2 and 4 correctly describe the superior and lateral boundaries of Calot's triangle. Nevertheless, statement 3 is incorrect because the **right hepatic artery** is not a characteristic content of Calot's triangle [1].
- The **common hepatic duct** forms the medial boundary, which is statement 1 and is correct, but not included in this option.