Initial core biopsy
Initial bone marrow aspirate
Initial bone marrow aspirate #2
Day 22 bone marrow core biopsy low power
Day 22 bone marrow biopsy high power
Day 22 bone marrow aspirate
Day 22 bone marrow aspirate #2
t(8;21) positive; initial bone marrow biopsy
t(8;21) negative; Day 22 bone marrow