Table 3.

Patients with 5% or more bone marrow hematogones with repeat flow cytometry

Clinical statusProcessing method and
time sequence of studies
Percent
bone marrow
hematogones
Patient no. 1   
 After chemotherapy for T-ALL 1st analysis 19%  
 DG-processed  
 After chemotherapy for T-ALL 2nd analysis (3 wk later) 11.5% 
 DG-processed  
Patient no. 2   
 Down syndrome 1st analysis 8.9%  
 Slowly evolving AML before treatment AC-processed  
 Down syndrome 2nd analysis (3 wk later) 10.2%  
 Slowly evolving AML before treatment AC-processed  
Patient no. 3   
 APL in remission after chemotherapy 1st analysis 6.2% 
 DG-processed  
 APL in remission after chemotherapy 2nd analysis (4.5 mo later) 2.6% 
 AC-processed  
Patient no. 4   
 ALL 14 d after induction
chemotherapy 
1st analysis 0% 
 DG-processed  
 28 d after induction chemotherapy 2nd analysis (2 wk later) 0%  
 DG-processed  
 2 mo after induction chemotherapy 3rd analysis (1 mo later) 0.5% 
 DG-processed  
 3 mo after induction chemotherapy 4th analysis (1 mo later) 0.1%  
 AC-processed  
 4 mo after induction chemotherapy 5th analysis (1 mo later) 6.6% 
 AC-processed  
Patient no. 5   
 NHL before treatment 1st analysis 6.6%  
 DG-processed  
 NHL 2.5 mo after chemotherapy 2nd analysis (2.5 mo later) 0.2% 
 AC-processed  
Patient no. 6   
 MDS before bone marrow transplantation 1st analysis 0.3% 
 DG-processed  
 After bone marrow transplantation 2nd analysis (5.5 mo later) 7.2%  
 AC-processed  
Patient no. 7   
 NHL before treatment 1st analysis 6.9% 
 DG-processed  
 NHL after chemotherapy 2nd analysis (2.5 mo later) 0.6%  
 DG-processed  
Patient no. 8   
 Residual AML after chemotherapy 1st analysis 0.19%  
 DG-processed  
 Residual AML after chemotherapy 2nd analysis (1.5 mo later) 1.7% 
 DG-processed  
 Residual AML after chemotherapy 3rd analysis (1 mo later) 9.3%  
 AC-processed  
 Residual AML after chemotherapy 4th analysis (1 wk later) 0% 
 AC-processed  
Patient no. 9   
 HIV and NHL after chemotherapy 1st analysis 10% 
 DG-processed  
 HIV and NHL after chemotherapy 2nd analysis (2 mo later) 0%  
 DG-processed  
Clinical statusProcessing method and
time sequence of studies
Percent
bone marrow
hematogones
Patient no. 1   
 After chemotherapy for T-ALL 1st analysis 19%  
 DG-processed  
 After chemotherapy for T-ALL 2nd analysis (3 wk later) 11.5% 
 DG-processed  
Patient no. 2   
 Down syndrome 1st analysis 8.9%  
 Slowly evolving AML before treatment AC-processed  
 Down syndrome 2nd analysis (3 wk later) 10.2%  
 Slowly evolving AML before treatment AC-processed  
Patient no. 3   
 APL in remission after chemotherapy 1st analysis 6.2% 
 DG-processed  
 APL in remission after chemotherapy 2nd analysis (4.5 mo later) 2.6% 
 AC-processed  
Patient no. 4   
 ALL 14 d after induction
chemotherapy 
1st analysis 0% 
 DG-processed  
 28 d after induction chemotherapy 2nd analysis (2 wk later) 0%  
 DG-processed  
 2 mo after induction chemotherapy 3rd analysis (1 mo later) 0.5% 
 DG-processed  
 3 mo after induction chemotherapy 4th analysis (1 mo later) 0.1%  
 AC-processed  
 4 mo after induction chemotherapy 5th analysis (1 mo later) 6.6% 
 AC-processed  
Patient no. 5   
 NHL before treatment 1st analysis 6.6%  
 DG-processed  
 NHL 2.5 mo after chemotherapy 2nd analysis (2.5 mo later) 0.2% 
 AC-processed  
Patient no. 6   
 MDS before bone marrow transplantation 1st analysis 0.3% 
 DG-processed  
 After bone marrow transplantation 2nd analysis (5.5 mo later) 7.2%  
 AC-processed  
Patient no. 7   
 NHL before treatment 1st analysis 6.9% 
 DG-processed  
 NHL after chemotherapy 2nd analysis (2.5 mo later) 0.6%  
 DG-processed  
Patient no. 8   
 Residual AML after chemotherapy 1st analysis 0.19%  
 DG-processed  
 Residual AML after chemotherapy 2nd analysis (1.5 mo later) 1.7% 
 DG-processed  
 Residual AML after chemotherapy 3rd analysis (1 mo later) 9.3%  
 AC-processed  
 Residual AML after chemotherapy 4th analysis (1 wk later) 0% 
 AC-processed  
Patient no. 9   
 HIV and NHL after chemotherapy 1st analysis 10% 
 DG-processed  
 HIV and NHL after chemotherapy 2nd analysis (2 mo later) 0%  
 DG-processed  

T-ALL indicates T-cell acute lymphoblastic leukemia; DG, density gradient separation; AC, ammonium chloride lysis; AML, acute myeloid leukemia; APL, acute promyelocytic leukemia; NHL, non-Hodgkin lymphoma; HIV, human immunodeficiency virus; and MDS, myelodysplastic syndrome.

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