Abdominal separation in an adult male patient with acute abdominal pain

Figure 1 Plain abdominal X-ray. Mildly dilated pneumatic intestinal canal loops but no typical air-fluid level shadow in the left upper quadrant of abdomen.

Figure 2 Computed tomography scan. Suspicious upper abdominal mesentery intorsion (A, arrow), right lower quadrant intestinal loop (B, arrow), middle abdominal line separation (C, arrow).

Figure 3 Schema showing a membrane separating the peritoneal cavity into two compartments (A) and descending mesocolon dorsal root connecting with the ascending colon (B).

Figure 4 Abdominal and kidney ultrasonography showing no mass and fluid collection (A), left (B) and right (C) normal kidney structure.