Gastric Cancer

➡️(Annex 1), Figure 1 Lymph node groups 1–6 (N1)

Chul-Hyo Jeon et al. BMC Cancer,23, 1192 (2023)

➡️Figure 2. Lymph node groups 7–11 (N2)

Chul-Hyo Jeon et al. BMC Cancer,23, 1192 (2023)

➡️(Annex 2) American Joint Committee on Cancer (AJCC)

TNM Staging Classification for Carcinoma of the Stomach (8th ed., 2017)

➡️(Annex 3) POSTOPERATIVE CRT

▪️  If Fluorouracil is used then: 2 cycles before and 4 cycles after CRT.

▪️  With radiation Fluorouracil 200–250 mg/m2 IV continuous infusion over 24 hours daily on Days 1–5 Weekly for 5 weeks

▪️  If Capecitabine is used then: 1 cycle before and 2 cycles after CRT. With radiation Capecitabine 625–825 mg/m2 PO BID on Days 1–5 Weekly for 5 weeks

▪️  CT simulation and conformal treatment planning should be used with either three-dimensional conformal radiation therapy (3D-CRT) or intensity-modulated radiation therapy (IMRT)

▪️  RT Dose: 45–50.4 Gy (1.8 Gy/day) (total 25–28 fractions)

▪️ Higher doses may be used for positive surgical margins in selected cases as a boost to that area.