Table 2:

Clinicopathologic characteristics of patients with benign or low-grade malignant tumors.

Patient	Age	Procedure	Final Pathology	TBR
6	75	DP	Mixed-type IPMN with low grade dysplasia	7.82
8	71	PD	Well differentiated pancreatic neuroendocrine tumor	1.06
9	44	DP	Microcystic serous cystadenoma	5.31
12	83	DP	Main duct IPMN with high grade dysplasia	2.13
14	22	DP	Neurofibroma	1.00
15	61	PD	Mixed-type IPMN with high grade dysplasia	1.43
18	72	PD	Serous cystadenoma	0.98
20	47	DP	Well differentiated pancreatic neuroendocrine tumor	0.99

Abbreviations: TBR tumor-to-background ratio, DP distal pancreatectomy, IPMN intraductal papillary mucinous neoplasm, PD pancreaticoduodenectomy