An area occupying the most posterior aspect of the ABDOMINAL CAVITY. It is bounded laterally by the borders of the quadratus lumborum muscles and extends from the DIAPHRAGM to the brim of the true PELVIS, where it continues as the pelvic extraperitoneal space.

Annotation

usually NIM as locational; diagnostic retropneumoperitoneum or pneumoretroperitoneum: index RETROPERITONEAL SPACE /diag image + PNEUMORADIOGRAPHY (do not confuse with the pathological condition, RETROPNEUMOPERITONEUM)

DUI

D012187 MeSH Browser

CUI

M0018976