CECT abdomen axial scan at the level of the pancreas: There is mild focal hypodensity in the head and hypodensity in the tail of the pancreas suggestive of acute pancreatitis. There is fluid collection in the lesser sac (marked by vertical yellow arrow containing air specks on the non-dependent part [H.U. value around -302]), uncinate process (marked by red arrow), and right subhepatic space marked by the horizontal yellow arrow (containing fat and air specks within [H.U. value -50 to -290, respectively]).