Figure 1. Visualization of the anatomic location of retrocrural space across diaphragmatic hiatuses section on CVH2.

(A) On the upper section, the anterior margin of the retrocrural space (C) consists of the distal esophagus (D), the posterior border is thoracolumbar vertebra, both anterolateral borders are composed of the diaphragmatic crus (A), both posterolateral borders are made up of the mediastinal pleura (B). The aorta (E) is situated in the retrocrural space. The potential recess located between the diaphragmatic crura and the mediastinal pleura is the interior costophrenic sulcus (G). The peripancreatic fluid may drain into the retrocrural space via the esophageal hiatus (F). (B) On the lower section, the anterior border of the retrocrural space is open to the retroperotoneum, the posterior border is the lumbar vertebra, both lateral borders are made up of the diaphragmatic crus (A), the mediastinal pleura (B) constitutes the right posterolateral border. The inferior vena cava (K) and the both sides of adrenal glands (I) are distributed at the anterolateral direction of the retrocrural space. Furthermore, the peripancreatic fluid that originates from the pancreas (J) may drain into the retrocrural space across the aortic hiatus (H).