Genital-sparing technique of pelvic radiotherapy for treatment of rectal and anal cancers.

We describe our genital-sparing technique of postoperative radiotherapy used to deliver 5,000 rad in six weeks to only the pelvic tissues at risk for recurrence following surgery for adenocarcinoma of the rectum, as well as our technique of combined external-beam and interstitial endocurietherapy used to deliver 9,000 rad to primary anal cancers.