Table 2. Grading of Radiation Esophagitis (RTOG Scale).

	RTOG scale
Grade 1	Mild dysphagia or odynophagia, requires soft diet, topical anesthetic or non-narcotic agents
Grade 2	Moderate dysphagia or odynophagia, requiring liquid diet or narcotic agents
Grade 3	Severe dysphagia or odynophagia with dehydration or weight loss (> 15% or pretreatment baseline), requiring nasogastric feeding
Grade 4	Complete stricture, ulceration, perforation or fistula
Grade 5	Death

RTOG: Radiation Therapy Oncology Group.