MKI67 and neoplasm: Table I lists their mean baseline characteristics. A total of 75 patients were treated with breast-conserving surgery, while 25 underwent modified radical mastectomy. The median number of positive axillary nodes was 3.3. A total of 83 patients were ER+ and 17 patients had triple-negative disease. The median Ki-67 was 33%. Of the 20 patients with CERB-2+ tumours, 13 were treated with trastuzumab after 2006; seven were not since their treatment occurred before its approval as adjuvant therapy.