CML Developing Three Years after Therapy Completion in a Child with Ph(−) Pre-B-ALL

Table 1

Presence of BCR-ABL transcript in sequential Bone Marrow samples.

Date	Status of the disease	BCR-ABL copy number
November 2008	CP	11700
August 2009	CHR	30
February 2010	MMR	3
July 2010	CMR	UN detectable

CP: chronicphase, (CHR): complete hematology remission, MMR: major molecular response, CMR: complete molecular response.