Retrospective evaluation of combined modality treatment and prognostic factors in patients with esophageal cancer.

The influence of prognostic factors and combined modality treatment on survival was evaluated retrospectively for 156 patients with esophageal cancer receiving radiotherapy in different modalities between 1991 and 2001 at the University of Heidelberg and the Universitätsklinikum Mannheim. Forty-six patients (29.5%) were treated with radiotherapy alone, 74 patients (47.