The anterior pararenal space (APRS) is located between the parietal peritoneum (PP) and the anterior renal fascia (ARF) and contains the pancreas (Pan), the ascending colon (AC), and the descending colon(DC).

The posterior pararenal space (PPRS) is located between the posterior renal fascia (PRF) and the transversalis fascia (TF).

The perirenal space (PRS) is located between the anterior renal fascia and the posterior renal fascia.

Ao = aorta, IVC = inferior vena cava, LCF = lateroconal fascia.

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