Proctitis after external-beam radiotherapy for prostate cancer classified by Vienna Rectoscopy Score and correlated with EORTC/RTOG score for late rectal toxicity: Results of a prospective multicenter study of 166 patients

Conclusions: The VRS is a feasible and effective tool for describing and classifying pathologic findings in the rectal mucosa after RT within a multicenter trial. The VRS and EORTC/RTOG showed a high coherence. However the VRS was significantly more sensitive.