What if you can't get prior RT records??

Saw a patient with a new diagnosis of high risk prostate cancer who had colectomy and adjuvant chemoradiation 30 years ago for an adenocarcinoma of the rectosigmoid flexure. According to the institution that treated him, all of his records were destroyed. He wants RT for his prostate cancer. How would you proceed?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Tags: Radiation Oncology Source Type: forums