A case of ovalocytosis of peripheral blood erythrocytes in a patient with normal peripheral blood parameters according to data from a 5-diff hematology analyzer is presented. The interest of the clinical case for attending physicians and specialists of clinical diagnostic laboratories is due to significant discrepancies between the results of clinical blood analysis according to automated and non-automated assessment. Changes in morphology of erythrocytes were detected in the stained blood smear, which were not accompanied by changes in erythrocyte indices (MСV, МСН, RDW) or the appearance of signal flags on hematological analyzers.
Dmitriy Yu. Sosnin – MD, PhD, Professor at the Department of Faculty Therapy No. 2, Occupational Pathology and Clinical Laboratory Diagnostics of the Wagner State Medical University, E. A. Vagner Perm State Medical University, Ministry of Health of Russian Federation, Perm, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Vladimir V. Bazarnyi – MD, PhD, Professor, Chief Researcher of the Department of General Pathology of the Central Research Institute of the UGMU; Vice-Rector for Research and Clinical Work of the UGMU Ministry of Health of Russia, Yekaterinburg, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Yaroslava B. Khovaeva – MD, PhD, Professor, Head of the Department of Internal Medicine and Family Medicine of the Wagner State Medical University, E. A. Vagner Perm State Medical University, Ministry of Health of Russian Federation, Perm, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Grigorii I. El'kin – MD, PhD, Associate Professor, Associate Professor of the Department of Clinical Biochemistry and Laboratory Diagnostics Military medical academy of S. M. Kirov, Saint-Petersburg, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
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