We expect to find some blasts in the bone marrow. That is where the blood cells are formed, so around 2% blasts should be there. What we don't expect is to find any in the peripheral blood. Blood cells are released into the blood stream after they mature. So we naturally see some difference. In any case, if there is a clone line present, that suggests a malignancy. In my case, I have 10% blasts in my bone marrow, but they are not malignant. It's very strange so I'm on watch and wait, even though my neutrophils are under 500, considered to be severe. My platelets hang out in the 70's and I'm mildly anemic with a slow descent downward. I can do a GCSF test if the marrow stays non cancerous. They would like to see a higher white blood cell count, but they also do not want to stimulate cancer by giving me the drug too early. In the meantime, I feel find.
