Acute Pancreatitis (AP) is the inflammation of the Pancreas usually accompanied by abdominal pain and elevated levels of serum pancreatic enzymes with high rate of morbidity and mortality. USG provides initial radiological diagnosis of Acute pancreatitis with the extent of involvement and to evaluate other abdominal organs. CT scan provides a cross-sectional anatomy of the organ and involvement of adjacent structures. With the use of contrast study there is more information regarding the need for acute pancreatitis.The purpose of this study to understand the role of CT and USG indiagnosis of pancreatitis and to highlight and evaluate the cases in which USG failed to diagnose, which were helped through by CT.