Breast conservative surgery is done in all except
Lobular carcinoma insitu: Tamoxifen (risk reduction in premenopausal) or raloxifen (post-menopausal) often with bilateral total mastectomy is the treatment. Ref : SRB&;s 4thE pg:568
Young patients
Ductal carcinoma is situ
Lobular carcinoma
Infiltrative ductal carcinoma
Endocrinology and breast