<prompt> In breast conservation surgery, the healthy margin excised is typically:1 cm2 cm3 cm5 cm  <response>: Breast Conservation Surgery. - Performed for early invasive breast cancer Stage I, IIA, IIB BCS consist of Excision of lump - Lumpectomy or Wide local excision with 1 cm margin or more extensive excision of a whole quadrant of breast Quadrantectomy. 