I received an update on a friend and don't understand what they are talking 
about when they say "masks in bone marrow."  I tried looking it up without 
success.  The following is part of the email:

 

"Dwayne's blast level is zero, and in in remission thanks to the chemo, but he 
still has pneumonia in both lungs and that is getting better slowly, plus he 
now has high level of "Masks" in his bone morrow. They will no more how to 
treat it Tuesday when the test results come back. I am not sure exactly what 
these masks are and how it affects his cancer."

 

Could someone help me understand what this means.

 

Dianne
                                          
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