There will be measurable histopathological treatment effects identified in Arm 2 cases receiving pre-operative radiation. Results found are expected to assist in designing a more definitive study. Compare pathological findings in individuals with ductal carcinoma in situ (DCIS) who have surgical excision versus neoadjuvant radiotherapy followed by delayed surgical excision.~It is noted that phase 2 is formally associated with drug studies. Nonetheless, it is however part of the time of this study.
The purpose of this pilot study is to compare by pathological findings surgical excision versus neoadjuvant radiotherapy followed by delayed surgical excision of ductal carcinoma in situ (DCIS)