Hi Majo, haven't faced the same thing with the nipple but was told initially that a lumpectomy would be all that I needed to remove my tumor. Was also told the amount of tissue required to be removed would greatly deform my remaining breast. I decided to go with full mastectomy and immediate reconstruction using silicone implant. Surgeon after checking ultrasound, mammography results said that she was happy I was going with full mastectomy as there was a possible satellite cancer as well (turned out to be a benign lesion). Results were grade 1 cancer - full mastectomy, clear nodes, clear margins, no chemo, no radiotherapy and I will have surgery and fat grafting to match my old breast to my new and improved one. All good. Four months down the track absolutely no regrets. Let us know what you decided and wishing you all the best.