Histology for Pathology Hematopoietic Elements Theresa Kristopaitis, MD Associate Professor Director of Mechanisms of Human Disease Kelli A. Hutchens, MD, FCAP Assistant Professor Assistant Director of Mechanisms of Human Disease Loyola Stritch School of Medicine Welcome to basic histology of the skin

Objectives On a peripheral blood smear identify the following cells: erythrocytes, platelets, neutrophils, eosinophils, basophils, lymphocytes and monocytes. On a peripheral blood smear identify neutrophil band cells (also known as stab cells) and state the clinical significance of their presence. On H&E stained sections, identify neutrophils, eosinophils, lymphocytes and plasma cells. On a stained H&E section identify the 3 major components of bone marrow (bone trabeculae, hematopoietic cells, adipose tissue). List the sequence of development of a granulocytes – focusing on the neutrophil. On a section of bone marrow, identify a megakaryocyte. Define “blast cell”.