[header] How to treat breast and extramammary paget's disease [title] Undergo breast-conserving surgery if you don't have a lump. [step] If you have paget's disease but do not have a lump, you may be able to undergo a surgery that saves the breast. Your nipple and areola will be removed, but the breast will remain intact. 
[substeps] You may also need to get surrounding tissue removed near the nipple area. [title] Get a mastectomy if you have a tumor.