Mastotomy is a medical term that refers to the surgical procedure of making an incision in the breast tissue for various reasons such as biopsy or removal of a lump. Some synonyms for mastotomy include breast incision, breast biopsy, breast surgery, and breast excision. Other related medical terms include lumpectomy, which is a breast-conserving surgery that removes a tumor and surrounding breast tissue, and mastectomy, which is a surgical removal of all or a portion of the breast. These procedures are typically performed by a qualified physician or surgeon and can be necessary for both diagnostic and treatment purposes.