Macrocytic Microcytic and Normocytic Anemias Pathology in Robbins Hematology for Medical Exams
Anemias are classified into microcytic, macrocytic, and normocytic categories based on red blood cell (RBC) volume measured in femtoliters (fL), driven by mechanisms that alter hemoglobin synthesis or globin chain production. The core pathological principle involves a deficit in heme components—such as iron deficiency, protoporphyrin defects via enzyme inhibition, insufficient globin chains due to genetic deletion, or sequestration of iron mediated by hepcidin during chronic inflammation—which reduces oxygen-carrying capacity and results in hypoxic symptoms like fatigue and dyspnea.
Macrocytic Microcytic and Normocytic Anemias Pathology in Robbins Hematology for Medical Exams
Anemias are classified into microcytic, macrocytic, and normocytic categories based on red blood cell (RBC) volume measured in femtoliters (fL), driven by mechanisms that alter hemoglobin synthesis o…