<prompt> IOC acute pancreatitis:Contrast CTUSGSerum lipaseSerum amylase  <response>: Ans. a Contrast CTRef: Bailey 26th ed. 192, 1121 CECT can be used to assess the severity of acute pancreatitis and to estimate the prognosis. Balthazar et al developed a grading system in which patients with acute pancreatitis are classified into one of the following 5 grades: Grade A - Normal-appearing pancreas Grade B - Focal or diffuse enlargement of the pancreas Grade C - Pancreatic gland abnormalities associated with peri-pancreatic fat infiltration Grade D - A single fluid collection Grade E - Two or more fluid collections 