Copyright © 2017 American Academy of Pediatrics. From: American Academy of Pediatrics Textbook of Pediatric Care, 2nd Edition, 2017 Figure Legend: Iron-deficiency anemia. Many red blood cells are microcytic (smaller than the nucleus of the normal lymphocyte near the center of the field) and hypochromic (with central areas of pallor that exceed one-half of the diameter of the cells). (From Goldman L. Cecil Textbook of Medicine. 22nd ed. Copyright © 2004 Elsevier, with permission.) Date of download: 12/31/2017 Copyright © 2017 American Academy of Pediatrics. All rights reserved.