High expression of all investigated PDGF family members correlated to increasing NHG and high Ki67, and also to different degrees to TNBC, expression of cytokeratin 5/6 (CK5/6+), young age (< 50 years), large tumour size, ER−, PR− and EGFR+ (Table 1). This evidence concerns the gene MKI67 and neoplasm.