From: Assessment of laparoscopic stomach preserving surgery with sentinel basin dissection versus standard gastrectomy with lymphadenectomy in early gastric cancer–A multicenter randomized phase III clinical trial (SENORITA trial) protocol
Mucosa
Submucosa
≤20 mm
21–30 mm
Differentiated type
Exclusion
ESD or LWR/EFTR or LSR
LWR/EFTR or LSR
LSR
Undifferentiated type