CSF3 and Miyoshi myopathy: However, in another study in children with malignant tumors, the median time to platelet engraftment with plerixafor was 16 days (range 9–30 days) [13], which is similar to the median time of 18–21 days for platelet engraftment observed for both plerixafor plus G-CSF and the G-CSF alone arms in adult patients with non-Hodgkin’s lymphoma and MM [15, 16].