Fig. 3.
Microvessel counts of the bone marrow from 20 patients with acute myeloid leukemia (AML) and from 10 control patients expressed as the sum of microvessels in an area of 1.50 mm2[thrombomodulin (TM) staining].
The difference between groups was statistically significant (P = .0001; Mann-Whitney rank sum test for independent groups). The insert denotes the regression line (r = 0.960,P < .0001) for microvessel counts obtained using hot spots (mean value of three 0.125 mm2 fields) and using a larger area of 1.5 mm2 from the same bone marrow sections.