Are you using vaginal dilators during treatment of rectal cancer to spare anterior vaginal wall, or are you reserving this for anal cancers?

We are using vaginal dilators for any woman with anal cancer or rectal cancer who desires to be treated with one. This is most impactful when the dose is being delivered to the distal vagina, near the introitus, but we do not have data to determine a cutoff. Of course, many rectal cancers require tr...