Evaluation of diagnostic cytology via endoscopic naso-pancreatic drainage for pancreatic tumor

Table 2 Diagnostic, surgical methods and final diagnosis of pancreatic diseases

		No.
Operable	Pancreaticoduodenectomy	10
	Distal pancreatectomy	3
	Total pancreatectomy	1
	Palliative operation or exploratory laparotomy	4
Inoperable		17
Cancerous	Pancreatic cancer	16
	IPMN-CAN	3
	Others	2
Non-cancerous	IPMN-BEN	8
	Chronic pancreatitis	5
	Others	1

In 18 operable cases, the final diagnosis was confirmed on the basis of the resected specimen. In the 17 inoperable cases, it was diagnosed by follow-up findings at least 6 mo after endoscopic naso-pancreatic drainage (ENPD). The diagnosis of pancreatic ductal adenocarcinoma derived from the intraductal papillary mucinous neoplasm (IPMN-CAN) was only confirmed pathologically in consecutive lesions. We defined IPMN without the potential of cancer as IPMN-BEN.