Table 1. Clinical characteristics of NENs patients.

	abdominal pain	diarrhea	flush	syncope	hemoptysis
pancreas	16 (22.2%)	0	4 (5.6%)	11 (15.5%)	0
cardia	3 (30%)	0	0	0	0
SI	3 (37.5%)	0	0	0	0
colon	1 (25%)	0	0	0	0
rectum	4 (19%)	2 (9.5%)	0	0	0
stomach	1 (6.7%)	0	0	0	0
liver	0	0	0	0	0
lung	0	0	0	0	11(40.7%)