Retroperitoneal space
Anatomical region behind the peritoneum containing major vessels, lymph nodes, and organs, relevant in advanced laparoscopy.
Full Definition
The anatomical compartment located posterior to the parietal peritoneum and anterior to the posterior abdominal wall muscles. This space contains vital structures including the aorta, inferior vena cava, kidneys, ureters, and major lymph node chains. In laparoscopic surgery, access to the retroperitoneal space is important for procedures such as lymph node dissection, tumor staging, and treatment of retroperitoneal masses. Techniques for laparoscopic retroperitoneal access include both transperitoneal and extraperitoneal approaches, each with specific advantages and limitations.
Usage
Usage note: Critical anatomical concept for advanced laparoscopic procedures. Specify approach method when documenting.
In Context
- "Dissection was carried into the retroperitoneal space to access the para-aortic lymph nodes." — Oncologic operative report
- "The retroperitoneal approach allowed for excellent visualization of the ureter throughout its course." — Surgical technique description