Clinical features of second primary cancers arising in early gastric cancer patients after endoscopic resection

Table 3 Distribution of second primary cancers according to gastric cancer group n (%)

Location	Overall	EGC group	AGC group
	(n = 38)	(n = 17)	(n = 21)
Lung	7 (18.4)	3 (17.6)	4 (19.0)
Colorectal	5 (13.2)	2 (11.8)	3 (14.3)
Esophagus	5 (13.2)	2 (11.8)	3 (14.3)
Urogenital	4 (10.5)	2 (11.8)	2 (9.5)
Gynecologic	3 (7.9)	1 (5.9)	2 (9.5)
Pancreas	3 (7.9)	1 (5.9)	2 (9.5)
Skin	2 (5.3)	1 (5.9)	1 (4.8)
Hematology	2 (5.3)	1 (5.9)	1 (4.8)
Others	7 (18.3)	4 (23.4)	3 (14.3)

EGC: Early gastric cancer; AGC: Advanced gastric cancer.