An image from a peripheral blood smear showing blasts with loose chromatin pattern and basophilic cytoplasm seen in a patient with acute leukemia (50X oil immersion).
An image from a bone marrow smear demonstrating numerous myeloid precursors arrested at the promyelocyte stage, and cells with bundles of auer rods known as faggot cells in a patient with acute promyelocytic leukemia (50X oil immerson).