Effect of Imatinib on Bone Marrow Morphology and Angiogenesis in Chronic Myeloid Leukemia

Table 1

Criteria for assessment of morphological response.

Parameter	Finding	Points
Cellularity	not increased for age	0
	increased for age	1
M:E ratio	≤ 4:1	0
	> 4:1	1
Fibrosis	grades 0 to 2	0
	grade 3	1
Abnormal megakaryocytes	< 10% of all megakaryocytes	0
	≥ 10% of all megakaryocytes	1
Type of tap	not dry	0
	dry	1
Percentage of blasts	dry tap	0
	not dry and < 5%	0
	not dry and ≥ 5%	1
Percentage of basophils	dry tap	0
	not dry and < 1%	0

M:E ratio: myeloid: erythroid ratio.