The baseline of expression for HMGCS2 and FABP7 in apocrine carcinomas at the protein level was first evaluated in a selected number of well differentiated IACs (6 samples) using 2D PAGE and PDQUEST-based image analysis as compared to TNBC (6 samples), Luminal B (7 samples) and HER2 (7 samples) subtypes of which there was fresh frozen tissue. This evidence concerns the gene HMGCS2 and apocrine adenocarcinoma.