An image from a bone marrow smear demonstrating myeloid hyperplasia and a few blasts seen in a patient with chronic myelogenous leukemia (50X oil immersion). Few erythroid precursors are present.
An image from a bone marrow smear showing a blast (center) with loose chromatin pattern and scant basophilic cytoplasm seen in a patient with a normal bone marrow (100X oil immersion).