Question

During a complex duodenal surgery, a vessel posterior to the duodenum is cut, resulting in massive bleeding and blood collection. Which vessel is most likely injured?

• A. Superior mesenteric artery
• B. Inferior vena cava
• C. Aorta
• D. Portal vein

Hint:

Major vessel posterior to the duodenum = inferior vena cava.

Answer 1

The Correct Option is B

Concept: The second part of the duodenum is retroperitoneal and lies anterior to important major vessels. The inferior vena cava lies posterior to the duodenum and can be injured during deep duodenal surgery.

Step 1: Identify anatomical relation.
The question asks about a vessel lying posterior to the duodenum.

Step 2: Recall posterior relations.
The inferior vena cava is an important posterior relation of the duodenum.

Step 3: Connect with massive bleeding.
Injury to the inferior vena cava can cause massive venous bleeding and blood collection. Therefore, the correct answer is Inferior vena cava.