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The Radiation Therapy Oncology Group (RTOG) has developed the Acute Radiation Morbidity Scoring Criteria for the evaluation of Radiotherapy treatments.
The RTOG grading is reliant on a clinician's ability to judge the anatomical changes associated with oral mucositis (size and characteristics of ulceration).
RTOG Scoring Criteria
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Grade
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Description
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0 (none)
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No change over baseline
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I (mild)
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Irritation, may experience slight pain, not requiring analgesic
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II (moderate)
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Patchy mucositis that may produce inflammatory serosanguinitis discharge; may experience moderate pain requiring analgesia
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III (severe)
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Confluent, fibrinous mucositis, may include severe pain requiring narcotic
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IV (life-threatening)
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Ulceration, hemorrhage, or necrosis
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Reference:
RTOG: http://www.rtog.org/
Trotti et al. Int J Radiat Oncol Biol Phys 2000; 47:13-47.
Sonis et al. Cancer 2004; 100(9 Suppl):1995-2025.
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