Lumpectomy (aka: tylectomy) is a common surgical procedure designed to remove a discrete lump, usually a malignant tumor or breast cancer, from an affected woman's or man's breast. As the tissue removed is usually limited and the procedure relatively non-invasive, compared to a mastectomy, a lumpectomy is considered a viable means of "breast conservation" or "breast preservation" surgery with all the attendant physical and emotional advantages of such an approach.
For patients with invasive ductal carcinoma who have lumpectomies, lymph node biopsy and radiation therapy are usually recommended. Adjuvant chemotherapy is often recommended, but it may not be recommended if the tumor is small and there are no lymph node metastases. For larger tumors, neoadjuvant chemotherapy may be recommended.