Risk factors for postoperative pancreatic fistula: Analysis of 539 successive cases of pancreaticoduodenectomy

Table 2 Disease composition

Pathological type	n
Pancreatic head cancer	126
Neuroendocrine tumor of the pancreatic head	12
Benign tumor of the pancreatic head	12
Solid pseudopapillary tumor of the pancreatic head	16
Autoimmune pancreatitis	3
Chronic pancreatitis	11
Lower bile duct cancer	145
Benign tumor of the lower bile duct	13
Ampullary cancer	76
Benign ampullary tumor	6
Duodenal stromal tumor	7
Duodenal cancer	10
Chronic mucosal inflammation of the descending duodenum	3
Duodenal papillary cancer	90
Benign duodenal papillary tumor	6
Duodenal papillary neuroendocrine tumor	3
Total	539