Hi and welcome to HCM.
All 3 reasons can cause it. Fatty liver
, hernia and colitis. Most probably colitis. You should find the cause of colitis. IS it diverticulosis
or infective one(if you have fever and diarrhea
). Or there are sign of crohn and ulceratice colitis. You should repeat Ct scan in few months and see is there improvement.
Fatty live ris treated by changing lifestyle habbits,avoid alcohols,fats and fast food. Exercise a lot.
will cause pain in abdominal wall,more like burning sensation.It can be surgicaly managed. Wish you good health.