PECAM1 and breast angiosarcoma: The mRNA expression levels of angiogenesis genes, including intercellular adhesion molecule-1 (ICAM1), platelet and endothelial cell adhesion molecule-1 (PECAM), C-type lectin domain family 4 member G (CLEC4G), and alanyl aminopeptidase and membrane (ANPEP), were also increased in the livers of BA patients compared to controls, but did not reach significance (Fig. S5).