Pancreaticoduodenectomy: A study from India on the impact of evolution from a low to a high volume unit

Table 1 Histopathological type

Variable	n (%)
Pancreatic adenocarcinoma	85 (42.5)
Ampullary adenocarcinoma	57 (28.5)
Distal cholangiocarcinoma	23 (11.5)
Duodenal adenocarcinoma	10 (5.0)
Neuroendocrine tumors	7 (3.5)
Serous cystadenoma	3 (1.5)
Chronic pancreatitis	3 (1.5)
Mucinous cystadenoma	2 (1.0)
Intra-ductal papillary mucinous neoplasm	2 (1.0)
Pancreatoblastoma	2 (1.0)
Gastrointestinal stromal tumors	2 (1.0)
Pancreatic sarcoma	1 (0.5)
Duodenal leiomyoma	1 (0.5)
Angiomyolipoma	1 (0.5)
Mucinous cystoadenocarcinoma	1 (0.5)