Retroperitoneal dissection · Recognition · D50
The thin wall over the cava
Allow about two minutes for two rounds. This scenario is teaching content; the score supports revision and does not assess clinical competence.
The scenario
- Right-sided retroperitoneal dissection for a right nephrectomy or node dissection.
- The colon is mobilised medially.
What you see
- A pale, thin-walled structure lies across the anterior surface of the inferior vena cava, running from the pylorus towards the left.

Teaching only · not for diagnosis or treatment decisions