Fig. 2.

Bone marrow biopsy. Arterioles and venules are prominent and endothelial cell proliferation of vessels is noted with suspicious microthrombi in the lumen (arrow) (HE stain×400).

Bone marrow biopsy. Arterioles and venules are prominent and endothelial cell proliferation of vessels is noted with suspicious microthrombi in the lumen (arrow) (HE stain×400).