CD19 and myeloid sarcoma: Counts of endothelial (CD105+), red blood cell (CD235a+), platelet (CD36+, CD41+), leukocyte (CD45+), T-lymphocyte (CD45+, CD3+), B-lymphocyte (CD45+, CD19+) and Annexin V+ lEVs were very similar in both MS patients and HC.