A comparative SWATH-MS analysis of two paraffin-embedded human MM tumor pieces (sarcomatoid vs. epithelioid, Supplementary Figure S3) revealed a significant increase in S100A4 abundance in both the tumor and its periphery, and concomitantly in three EMT markers (Supplementary Table S1 and Supplementary Figure S4). This evidence concerns the gene S100A4 and neoplasm.