VCAM1 and myeloid sarcoma: MS is characterized by an increase in the expression of cell adhesion molecules (Vascular Cell Adhesion Molecule 1 (VCAM-1), Intercellular Adhesion Molecule 1 (ICAM-1)) on the surface of endotheliocytes, which is an important factor ensuring the penetration of activated leukocytes through the BBB [11].