Treatment of<unk>  (NST) depends on the size of the mass (size of the tumor measured in its longest direction): * <4 cm mass: surgery to remove the main tumor mass and to sample the lymph nodes in the axilla. The stage of the tumor is ascertained after this first surgery. Adjuvant therapy (i.e., treatment after surgery) may include a combination of chemotherapy, radiotherapy, hormonal therapy (e.g., tamoxifen) and/or targeted therapy (e.g., trastuzumab). More surgery is occasionally needed to complete the removal of the initial tumor or to remove recurrences. * 4 cm or larger mass: modified (a less aggressive form of radical mastectomy) radical mastectomy (because any malignant mass in excess of 4 cm in size exceeds the criteria for a lumpectomy) along with sampling of the lymph nodes in the axilla. The treatment options offered to an individual patient are determined by the form, stage and location of the cancer, and also by the age, history of prior disease and general health of the patient. Not all patients are treated the same way.
Invasive carcinoma of no special type
Verrucous carcinoma
Basal-like carcinoma
Lymphoepithelioma-like carcinoma
Mucinous carcinoma
Sarcomatoid carcinoma
Ductal carcinoma in situ
Carcinoma ex pleomorphic adenoma