<prompt> Gasless abdomen in X ray seen inAcute PancreatitisIntusussceptionUlcerative ColitisNecrotising Enterocolitis  <response>: Causes of Gasless Abdomen: Mesentric Ischemia Midgut volvulus Acute Pancreatitis Signs in X ray in Acute Pancreatitis:- Colon cut off sign Sentinel Loop Ground glass appearance Renal halo sign Gasless abdomen Ref:- Surgery Sixer; Pg num:- 692 