Is endoscopic submucosal dissection safe for papillary adenocarcinoma of the stomach?

Table 6 Clinicopathologic characteristics of patients in out-of-endoscopic submucosal dissection indication

Patient No.	Gender/age	Ulceration	Histologic type	Tumor size (mm)	Pre-treatment ESD indication	Depth of invasion	LVI	Additional surgery	Follow-up period (mo)	Recurrence
1	M/74	-	PP	18	Absolute	m3	+	Yes	3	No
2	M/80	-	MP + undiff.	18	Absolute	sm2	+	Yes	7	No
3	M/68	-	PP	18	Absolute	sm2	-	Yes	18	No
4	M/66	-	PP	13	Absolute	sm2	-	Yes	20	No
5	M/56	+	PP	32	Expanded	m2	-	No	34	No
6	M/78	+	MP + diff.	34	Expanded	m3	-	No	3	No
7	M/74	+	PP	59	Expanded	m3	-	No	26	No
8	M/56	-	PP	24	Expanded	sm1	+	Yes	3	No
9	F/63	-	MP + diff.	30	Expanded	sm1	+	Yes	51	No
10	F/71	+	MP + diff.	32	Expanded	sm1	-	No	41	No
11	M/65	-	PP	22	Expanded	sm2	-	Yes	8	No
12	M/66	-	MP + diff.	24	Expanded	sm2	+	Yes	26	No
13	F/73	-	MP + undiff.	31	Expanded	sm2	-	Yes	24	No

ESD: Endoscopic submucosal dissection; LVI: Lymphovascular invasion; PP type: Pure papillary type; MP + diff.: Mixed papillary type with differentiated component; MP + undiff.: Mixed papillary type with undifferentiated component.