An image from a bone marrow smear showing a macrophage (center) with ingested red blood cells, vacuolation, and hemosiderin (iron) granules seen in a patient with a normal bone marrow (100X oil immersion).
An image from a bone marrow smear demonstrating myeloid hyperplasia seen in a patient with chronic myelogenous leukemia (50X oil immersion). A few erythroid precursors are present.
An image from a peritoneal fluid cytospin slide demonstrating many macrophages, polymorphonuclear cells, and monocytes (60X oil immersion). Macrophages have vacuolation and a few have ingested red blood cells (bottom-left, bottom-right).
An image from a Cerebrospinal Fluid (CSF) cytospin slide showing two lymphocytes (center, bottom right), two neutrophils (center left, center right), and a nucleated red blood cell (bottom) surrounded by red blood cells (60X oil immersion).
A peripheral blood smear picture showing a dimorphic population of red blood cells: hypochromic, microcytic RBCs next to normochromic, normocytic RBCs (50X oil immersion). A neutrophil (left) and a monocyte (right) are also present.