Vilela Vilela MH MH De Almeida De Almeida FM FM De Paula De Paula GM GM Utility of Ki-67, CD10, CD34, p53, CD117, and mast cell content in the differential diagnosis of cellular fibroadenomas and in the classification of phyllodes tumors of the breast Utility of Ki-67, CD10, CD34, p53, CD117, and mast cell content in the differential diagnosis of cellular fibroadenomas and in the classification of phyllodes tumors of the breast Int J Surg Pathol Int J Surg Pathol 2014 2014 22 22 485 485 491 491 10.1177/1066896914521290 10.1177/1066896914521290 24492332 24492332. This evidence concerns the gene MKI67 and phyllodes tumor.