SELP and myeloid sarcoma: We showed that in quiescent platelets from SP MS patients there was an elevated level of PAGs (approximately 2-fold vs. control, p < 0.0001) (Figure 1A), PMPs (1.5-fold vs. control, p < 0.0001) (Figure 1B), PLAs (2-fold vs. control, p < 0.0001) (Figure 1C), as well as the higher surface expression of P-selectin (over 2-fold vs. control, p < 0.0001) (Figure 1D).