Marked pneumoperitoneum with mild to moderate amount of free fluid in abdomen and pelvis ( 10-30 HU) – suggestive of hollow viscus perforation
Mild long segment mural thickening of jejunal, ileal with extensive surrounding mesenteric fat stranding and interloop free fluid – represents enteritis of indeterminate etiology.
One of the jejunal loops in left upper quadrant demonstrates tiny intramural air loculus and adjoining streak of fluid – represents most probable site of perforation at the anterolateral wall of jejunal loop in left quadrant
A clumped /clustered rounded loop of jejunum anterior to the pancreatic tail with mild wall thickening – possibility of left paraduodenal hernia cannot be ruled out.