part of part of has plasma membrane part perivascular macrophage A border associated macrophage that is adjacent to a small blood vessel of a brain. A perivascular macrophage expresses the markers CD14, CD16 and CD163. In homeostatic conditions, this central nervous system macrophage has a non-motile cell body with extending and retracting projections through the blood vessel wall. pvMΦ perivascular cell border associated macrophage low affinity immunoglobulin gamma Fc region receptor III CD14 molecule scavenger receptor cysteine-rich type 1 protein M130 blood vessel