Table 5.

Basic Information of MLL-r Positive ALL Relapse Cases

No.	Age/Gender	WBC×109/L	PR	Immunophenotype	D15 BM	D15 MRD	D33 BM	D33 MRD	Risk group	Partner gene
1	5 Month/Male	895.54	PGR	B	M3	Positive	M1	Positive	HR	MLL-ENL
2	11 Month/Female	3.87	PGR	B	M1	Negative	M1	Negative	IR	MLL-ENL
3	2 Year/Female	169.95	PPR	B	M1	Positive	M1	Negative	HR	MLL-AF4
4	2 Year/Female	218	PGR	T	M1	Positive	M1	Positive	HR	MLL-PTD

Abbreviation: WBC white blood cell, SR standard risk, IR intermediate risk, HR high risk, PR prednisone response, PGR prednisone good response, PPR prednisone poor response, MRD minimal residual disease evaluation, BM bone marrow