Can I have a mastectomy without removing the nipple?

Yes withreservations. Nipple saving mastectomy is often done in brca 1 or2 (genetically positive) patients(before cancer diagnosis) or in any patients withdcis or small- less than approx. 2 cm cancers- all at least 2 cm away from areola margin , no extensive dcis, no blood vessel invasion, no skin-muscle invasion .... No clinically positive lymph nodes under arm.But bra -cup size-must be: a or b cup, or not ptotic c cup.