Macrocytes

These four images were taken from the March 1997 Cytohematology Proficiency Test Event - Slide 001. Macrocytes are red cells with an increased size, 9-12µm in diameter. They may be found in liver disease and megaloblastic anemia. According to Barbara Brown, Hematology: Principles and Procedures, when associated with vitamin B12 or folic acid deficiency, the macrocytes may appear slightly oval in shape. Back to Slide 001