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Introduction: In pernicious anemia besides the presence of megaloblasts in the bone marrow, changes in myeloid series were seen; being the most evident among the metamyelocyte. The aim of this study was to perform the quantification of metamyelocyte of the bone marrow in pernicious anemia., Material and Methods: Between 2000-2006 in the Clinic of Hematology-Nis, 68 patients with pernicious anemia were examined and 30 with dyspeptic syndrome (control group). The group of patients with pernicious anemia in relation to pathohistologic changes of gastric mucosa was divided into three sub-groups. Morphometrical analysis of metamyelocyte of the bone marrow was carried out by the application of the double netlike system (B100). The following parameters were used: relative surface, contour length, absolute surface of nucleus and cytoplasm, absolute contour nucleus and cytoplasm density, shaped nucleus and cytoplasmic factor and nuclear-cytoplasmatic ratio of metamyelocytes., Results: Relative surface, contour length, absolute surface and contour density of nucleus and cytoplasm of metamyelocytes increased simultaneously with the degree of atrophic gastritis. Shaped nucleus and cytoplasmic factor and nuclear-cytoplasmatic ratio of metamyelocytes decreased in all examined groups in relation to the control group., Conclusion: Not only are bone marrow erythroid elements scoped with megaloblastic changes but the changes on the level of leukocyte cells as well. The result of this is the phenomena of giant metamyelocytes.