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Treatment of Pancreatic Cancer
Surgery can be used to treat pancreatic cancer, but, given the poor prognosis of the disease and the unusually high number of complications associated with pancreatic surgery, surgery is usually reserved for cases in which there is a reasonable possibility of curing the disease. If the cancer is considered to be incurable, major surgery is done mainly to relieve symptoms or digestive problems. Islet cell tumours are often localized to the tail of the pancreas, and a distal pancreatectomy may be conducted to remove this portion of the pancreas along with the spleen.
Exocrine cancers are often treated with the Whipple procedure, a complicated surgical approach that removes all or part of the pancreas and nearby lymph nodes, the gallbladder, and portions of the stomach, small intestine, and bile duct. Serious complications often arise following this procedure, which requires an extensive hospital stay and considerable experience on the part of the surgeon. Other exocrine tumours are sometimes treated by complete removal of the pancreas (total pancreatectomy). Surgery can also be used to relieve complications of pancreatic cancers, such as obstruction of the bile duct. The bile duct may be redirected around the tumour, or a tube may be placed in the bile duct to keep it open.
Radiation therapy is sometimes used in conjunction with surgery—often prior to surgery to reduce a tumour to a more manageable size but also after surgery to destroy any remaining cancer cells. The position of the pancreas in the abdominal cavity makes it a difficult target for focused radiotherapy, but a procedure using radiotherapy simultaneously with surgery permits the surgeon to focus radiation directly onto the pancreas by moving obstructing organs aside. Side effects of this radiation therapy may include vomiting, diarrhea, fatigue, or skin irritations resembling a sunburn.
Chemotherapy is generally used when pancreatic cancers have spread to distant organs and may be required so that as many cancer cells as possible can be sought out and destroyed. Endocrine or islet cell tumours may be treated with hormone therapy, in which specific hormones are used to stop or slow the growth of the cancer in the endocrine cells.
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