Precision surgical approach with lymph-node dissection in early gastric cancer

Table 2 Updated preoperative indications for endoscopic submucosal dissection in Japanese gastric cancer treatment guidelines 2018

Depth of invasion (preoperative)	Clinical mucosal cancer
Intra-tumoral ulcer of ulcer scar	UL 0		UL 1
Tumor size (Long axis)	2 cm	> 2 cm	3 cm	> 3 cm
Differentiated	A	B	B	D
Undifferentiated	C	D	D	D

A: Absolute indication for both endoscopic mucosal resection and endoscopic submucosal dissection; B: Absolute indication for endoscopic submucosal dissection; C: Expanded indication for endoscopic submucosal dissection; D: Relative indication (Alternative).