Table 3 Pathological findings (N = 14).

No	Group	UICC-TNM stage*	NET	Immunostaining								Findings
			G1/G2/NEC	chro A	CD56	Syn	Insulin	Gastrin	Soma	Glu	PPP	Number	Size (mm)	Microadenoma
1	A	1B	G2	p	–	–	p	–	p	–	–	1	15	0
2	A	1B	G1	p	–	–	pp	–	n	–	–	1	30	0
3	B	1A	G2	p	–	p	p	n	n	n	–	2	12, 8	0
4	B	1B	G1	n	–	p	p	n	n	n	n	21	0.4–26	15
5	A	1A	G2	p	–	p	n	p	pp	n	n	1	30	0
6	A	1A	G2	p	pp	p	p	n	p	n	n	1	8	0
7	B	1A	G2	p	–	p	n	p	n	n	n	4	0.4–8	3
8	A	1A	G1	p	p	p	p	n	–	n	–	1	13	0
9	A	1B	G1	p	–	p	p	n	n	n	n	2	30, 2	1
10	A	1A	G1	p	–	p	p	n	n	n	n	1	16	0
11	A	1A	G1	p	p	p	p	n	n	n	n	1	8	0
12	A	1A	G1	p	p	p	p	n	pp	n	–	1	14	0
13	A	1A	G1	p	p	p	p	n	n	n	–	1	8	0
14	C	1A	G1	p	pp	p	n	n	n	n	n	1	7	0

chro A chromogranin A, Glu glucagon, n negative, PPP pancreatic polypeptide, pp partial positive, p positive, Syn synaptophysin, Soma somatostatin, UICC-TNM Union for International Cancer Control Tumor-Node-Metastasis.
*Pathological stage, UICC TNM Classification of Malignant Tumors 8th edition.

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