The pancreas is the tenth most common site of cancer again, but pancreatic cancer is the fourth leading cause of cancer death in men and women, accounting for 6% of all cancer deaths. (See Epidemiology.)
Pancreatic cancer is difficult to diagnose in its early stages. At diagnosis, 52% of patients have distant disease and 26% have regional spread. Relative survival rates at one year of pancreatic cancer is only 24%, and the entire 5-year survival is 5%.  (see the forecast and balance.)
Types of pancreatic cancer
All tumors of the pancreas, 80% are adenocarcinomas are ductal epithelium. Only 2% of exocrine pancreatic tumors are benign. (See the aetiology and histological findings.)
Less common histological aspects of cancer of the exocrine pancreas include giant cell carcinoma, adenosquamous carcinoma, adenocarcinoma microglandular, mucinous, cystadenocarcinoma, papillary cystic carcinoma, acinar cystadenocarcinoma, and acinar cell cystadenocarcinoma. Rarely, primary cancers of the connective tissue of the pancreas can produce. The most common primary pancreatic lymphoma.
Adenocarcinoma of the pancreas is considered below. (See histologic findings.)