Table 1.

Clinicopathological features of Helicobacter pylori‐negative differentiated adenocarcinoma located in the antrum

Case	Gender	Age	Background mucosa	Location	Morphology	Size (mm)	Preoperative diagnosis	Differentiation	Depth
1	Male	51	Pyloric	Less	IIa + IIc	10	Group 4	tub1	M
2	Male	57	Pyloric	Ant	IIa	6	Group 3	tub1	M
3	Male	56	Pyloric	Post	IIa	12	Group 2	tub1	M
4	Male	51	Pyloric	Gre	IIa	14	Group 3	tub1	M
5	Male	32	Pyloric	Gre	IIa	8	Group 5	tub1	M
6	Female	48	Pyloric	Gre	IIc	10	Group 3	tub1	M
7	Female	61	Pyloric	Gre	IIa + IIc	18	Group 5	tub1	SM1
8	Male	64	Pyloric	Post	IIa	2	Group 2	tub1	M
9	Male	64	Pyloric	Gre	IIa	3	Group 5	tub1	M

Ant, anterior wall; Gre, greater curvature; Less, lesser curvature; M, intramucosal cancer; Post, posterior wall; SM1, invasion depth < 500 μm from muscularis mucosa.