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Table 1 Radiation Therapy Oncology Group (RTOG) acute radiation-induced esophageal morbidity scoring criteria

From: Influence of oral glutamine supplementation on survival outcomes of patients treated with concurrent chemoradiotherapy for locally advanced non-small cell lung cancer

Grade Description
0 No change
1 Mild dysphagia or odynophagia, requiring topical anesthetic, non-narcotic agents, or soft diet
2 Moderate dysphagia or odynophagia, requiring narcotic agents or liquid diet
3 Severe dysphagia or odynophagia with dehydration or weight loss (>15% of pretreatment baseline), requiring nasogastric feeding
4 Complete stricture, ulceration, perforation or fistula
5 Death