Post lumpectomy or partial mastectomy defects are very hard to correct, especially after a breast has been irradiated. The best time to correct these deformities is during the initial surgery. In many cases the breast can be lifted or reduced to reshape the breast to a more pleasing and aesthetic result.
It is therefore recommended to consult with a plastic surgeon who performs breast reconstruction before your lumpectomy or partial mastectomy. In addition other procedures (lift, augmentation, reduction) can be performed to the other breast for better symmetry during the initial or a later surgery.