Skip to main content

Table 2 Appendix 1 - RTOG late toxicity scale

From: Toxicity report of once weekly radiation therapy for low-risk prostate adenocarcinoma: preliminary results of a phase I/II trial

RTOG GRADE

 

0

I

II

III

IV

Bladder

None

Slight epithelial atrophy; minor

telangiectasia (microscopic hematuria)

Moderate frequency; generalized

telangiectasia; intermittent

macroscopic hematuria

Severe frequency & dysuria; severe

telangiectasia; frequent hematuria; reduction in bladder capacity (< 150 cc)

Necrosis/Contracted bladder (capacity < 100 cc); severe hemorrhagic cystitis

Small/Large

intestine

None

Mild diarrhea; mild cramping; bowel movement 5 times daily; slight rectal discharge or bleeding

Moderate diarrhea and colic; bowel

movement > 5 times daily; excessive rectal mucus or

intermittent bleeding

Obstruction or bleeding, requiring surgery

Necrosis/Perforation Fistula