1. To understand a simple classification for the causes of bowel obstruction. Radiological staging of adenocarcinoma of the pancreas is critical for adequate management of these patients because treatment depends on the stage of the disease. If pancreatic cancer is limited radical surgery can be performed whereas only palliative treatment with chemotherapy and radiotherapy can be offered in patients with locoregional or distant extension of the disease. There are many diagnostic techniques for studying the pancreas, but most authors agree that multidetector