I'm trying to understand the oncogenesis of CML. I have a question about CFC cells and blast cells. Are those the same? I know that in the chronic phase of CML there is a blast percentage of 1-10% of blast cells in the blood. Considering that the total amount of WBC is around 1x10–11 cells/l. That means the blast cells should be around the same order of magnitude. Looking on research articles I found that the amount of CFC (which contains according to my understanding all of the blast cells) are only 1x10–8 cells/l. Thus comprising around 0.1% of the blood count.
What cells can be considered as blasts? Only the myeloblasts? Are all blast cells CFC cells? I also know that the average value of CFC cells in the bone marrow is around 10–5 cells, so how can they be 10–9 cells?