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A B
Lymphatic vessel
SN
C D
E F
G
Primary tumor
Figure 3. Nonexposed endoscopic wall-inversion surgery (NEWS) with laparoscopic sentinel node (SN) mapping and sentinel lymphatic
basin dissection for early-stage gastric cancer. (A) Indocyanine green (ICG) was endoscopically injected into the submucosal layer around
the primary lesion; (B) ICG florescence imaging results in clear visualization of SNs and lymphatics; (C) laparoscopic circumferential
seromuscular incision surrounding the primary tumor; (D and E) laparoscopic seromuscular suturing and inversion of the primary tumor
site to the inside of the stomach; (F) endoscopic circumferential mucosal and submucosal incision for primary tumor resection; (G)
endoscopically retrieved primary tumor
