A case of intraductal tubulopapillary neoplasm of the pancreas in a branch duct: a rare case report and literature review

Table 2 Comparison of features between ITPN in MPD and BD

		MPD (N = 48)^a	BD (N = 5)^a	P value^c
Gender	M:F	30:18	3:2	0.63
Age	Mean ± SD	63 ± 13	61 ± 19	0.74
Tumor size^b (solid part)	Median (range)	32 (10–150)	12 (0–24)	< 0.01
Invasion	Yes (%)	26 (52%)	1 (20%)	0.13
	Minimally invasive–intra-pancreas	15	1
	Extra-pancreas–infiltration of other organs	8
	Unknown	3
	None	19	4
	N.A	3
Lymph node metastasis	Yes (%)	3 (8.8%)	0	0.66
	None	32	5
	N.A	13	0
Distant metastasis	Yes	0	0
	None	35	5
	N.A	13	0
Ki 67 (%)	Median (range) (N)	24.6 (1–65) (N = 29)	3.98 (1–5) (N = 3)	0.33
Relapse		7	0	0.48
	Pancreatic duct	3
	Pancreatic parenchyma	2
	Liver metastasis	1
	Rectal metastasis	1
Death from the ITPN		0	0

ITPN = intraductal tubulopapillary neoplasm of the pancreas, M = male, F = female, N.A = not available, MPD = the main pancreatic duct, BD = branch of the pancreatic duct
^aThe localization of tumor, whether in MPD or BD, were not available in 3 cases out of 56 cases
^bTumor size in case of growing over the entire pancreas was treated to be 100 mm
^cFor statistical analysis, Fisher’s exact test was used for categorical variables and the Welch t-test and Mann–Whitney U test were for quantitative data

ISSN: 1471-230X