Introduction.

The extraperitoneal space is defined as the topographic segment located between the parietal peritoneum internally and the fascia transversalis externally. As a result of the development and consolidation of laparoscopic surgery, particularly inguinal herniorrhaphy by this route, there has been a renewed and growing interest in this anatomical area, due to the importance of its detailed knowledge in minimally invasive surgery.

Methods.

A narrative review of the literature was made to present updated and detailed information on the anatomy of the extraperitoneal space and its importance in different surgical procedures currently performed.

Results.

Outside the peritoneal space are the anatomical areas external to the parietal peritoneum, including the preperitoneal and extraperitoneal. Using laparoscopy, five anatomical triangles, in addition to the corona mortis and the supravesical triangle, can be located in these spaces.

Conclusion.

Knowledge of the extraperitoneal space is of great importance for the general surgeon, taking into account the multiple procedures that require the approach of this topographic area.

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