Aims and objectives: Our emphasis is to describe the spectrum of imaging findings of acute pancreatitis with its severity, age distribution, CECT findings and complications of AP, considering revised Atlanta classification system (2012)5 and MCTSI [3-9]. Materials and methods: A cross sectional study was conducted from 1st sept 2019 to 30th oct 2021 on patients coming for CT scan of acute onset upper abdominal pain with nausea and vomiting within 7days of onset of symptoms. Reporting was done by 4 radiologists using recent terminology of revised Atlanta classification system (2012)5-7- 12and MCTSI introduced by Mortele et al [3-9] in 2004.