Pancreatic cancer -- the fourth leading cause of cancer death in the United States -- occurs when malignant cells develop in the pancreas. The National Cancer Institute estimated that in 2012, approximately 43,920 people will be diagnosed with pancreatic cancer, and 37,390 people will die from the disease. Within the first year of diagnosis, 75 percent of pancreatic cancer patients die, according to the Pancreatic Cancer Action Network…If it begins in the pancreas' hormone-producing cells, it is called islet cell cancer or pancreatic endocrine cancer, reports the Mayo Clinic.

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Tags: Cancer, Fox News, Mayo Clinic Health System, National Cancer Institute, pancreatic cancer, Pancreatic Cancer Action Network