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Figure S1 Magnetic resonance imaging at the initial examination.

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Figure S2 The tumor extending to the left gastric artery lymph nodes (yellow arrow).

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Figure S3 Extrinsic compression of the lesser anterior wall of the stomach revealed on an upper gastrointestinal fiberscope (yellow head).

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Figure S4 A cystic lesion adjacent to the gastric wall on endoscopic ultrasonography.

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Figure S5 Indocyanine green (ICG) injection.

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Figure S6 Ligation of lymphatic vessels surrounding the left gastric artery.

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Figure S7 No residual tumor by indocyanine green (ICG) fluorescence imaging.

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Figure S8 No residual tumor by indocyanine green (ICG) fluorescence imaging.

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Figure S9 Infiltration of the dilated lymphatic vessels in the subserosal layer (D2-40 positive).