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Childhood Acute Lymphoblastic Leukemia Treatment (PDQ®)

  • Updated: 04/04/2014

Table 4. Children's Oncology Group ALL Relapse Risk Stratification for B-Precursor ALLa

 Isolated CNS or Testicular Relapse  Bone Marrow or Combined Relapse 
<18 months from diagnosisIntermediate riskHigh risk
18–36 months from diagnosisLow riskHigh risk
>36 months from diagnosisLow riskIntermediate risk

ALL = acute lymphoblastic leukemia; CNS = central nervous system.
aAll relapsed T-cell ALL is considered high risk.