Clinical and cosmetic results of breast boost radiotherapy in early breast cancer: a randomized study between electron and photon.

Introduction: Breast-conserving surgery followed by radiation therapy (RT) to the intact breast is now clearly established as the most acceptable strategy for women with early-stage invasive breast cancer. Recommended techniques for radiotherapy is whole breast irradiation (WBI) followed by boost to the tumor bed.

Aims: The aim of this study is to compare the modalities of three-dimensional conformal RT (3DCRT) and electron beam therapy as boost in post-lumpectomy patients of early stage breast cancer, following WBI.