The pancreas is a 6-inch long body organ located behind the stomach in the abdomen. The pancreas contains exocrine and endocrine glands that produce pancreatic juices, insulin, and hormones. Pancreatic juices, also called pancreatic enzymes, are produced by exocrine glands and released into the intestine to aid digestion. About 95% of the pancreas is made up of exocrine glands and ducts. The endocrine part of the pancreas is organized into small groups of cells called islets of Langerhans. The islets of Langerhans release insulin and glucagon into the bloodstream, and these two hormones manage blood sugar levels. When these two hormones don't work as they should, diabetes often results. Cancer is a class of diseases caused primarily by out-of-control cell growth, and pancreatic cancer occurs when uncontrolled cell growth begins in the pancreas. The abnormal cells continue to divide in the pancreas to the point where they create tumors in the pancreas. Pancreatic cancer is classified according to whether or not it is exocrine or endocrine of the pancreas. There must be an important distinction between the two major types of pancreatic cancer because there are different risk factors, causes, symptoms, diagnostic tests, prognosis and treatments. Tumors that affect exocrine functions are the most common of pancreatic tumors. Sometimes the tumors or cysts are benign (tumors that stay in one place and show limited growth), they are called cystadenomas. But malignant tumors are more likely to be found and are called adenocarcinomas. These represent approximately 95% of exocrine pancreatic tumors. Adenocarcinomas, according to the National Cancer Institute, are tumors... half of the document... Pancreatic cancer are postoperative chemotherapy and postoperative chemotherapy, in which after the patient undergoes surgery and is followed with 5 -Chemotherapy and radiotherapy with FU (postoperative chemoradiotherapy) or gemcitabine or leucovorin (postoperative chemotherapy). STAGE III AND IVA As I stated before, it is really useless to try to treat stage III and IV pancreatic cancer because death is inevitable in these cases. However, in stage III, palliative surgery and stent placement are used to bypass blocked areas in the ducts or small intestine. Chemotherapy and chemoradiotherapy are also used. In stage IV, palliative treatments such as nerve blocks and stent placement are used to relieve pain. Clinical trials (a type of research study that tests the effectiveness of new medical approaches in people) are also tried and tested on these patients.