DCIS Study

This research compares surgery alone with the addition of radiotherapy or tamoxifen, or both, for the treatment of DCIS.

The initial findings confirmed that radiotherapy should be considered for all women with complete excision of localised DCIS.

Whether women with smaller lower grade lesions can avoid radiotherapy has not been addressed in this research.   The role of tamoxifen remains uncertain because of the conflicting results of this trial compared with earlier trials and further analysis of the trial results by hormone receptor status is awaited.