The vascular cord is the primordial vasculature that will develop into blood vessels by the process of tubulogenesis[GO]. The vascular cord is composed of angioblast or vascular endothelial cells in a solid linear mass called a cord. The cord then undergoes tubulogenesis to form the lumen of the vessels[ZFA]. [ ZFA:0005077 http://amigo.geneontology.org/amigo/term/GO:0072360 ]