Prognostic factors associated with worse outcomes following chemoradiation therapy in patients with anal carcinoma.

Aim: Chemoradiation therapy (CRT) is considered as the first line of treatment for patients with squamous cell carcinoma of the anal canal. Following initial CRT, patients who present with either persistent or locally recurrent disease are treated by surgical intervention. The aim of our study is to determine the prognostic factors associated with failure of CRT and overall mortality in patients with anal squamous cell carcinoma (SCC).