Table 1 Acute and late GI morbidity scoring system according to RTOG/EORTC scale[18]

Grade

Increased frequency or change in quality of bowel habits not requiring medication/rectal discomfort not requiring analgesics

Diarrhea requiring drugs/mucous discharge not necessitating sanitary pads/rectal or abdominal pain requiring analgesics

Diarrhea requiring parenteral support/severe mucous or blood discharge necessitating sanitary pads/abdominal distention

Acute or subacute obstruction, fistula or perforation; GI bleeding requiring transfusion; abdominal pain or tenesmus

Grade

Mild diarrhea; mild cramping

Moderate diarrhea and colic

Obstruction or bleeding requiring surgery

Necrosis/Perforation

Bowel movements 5 times daily

Bowel movements >5 times daily

Fistula

Slight rectal discharge or bleeding

Excessive rectal mucus or intermittent bleeding