ISSN 1308-8734 | E-ISSN 1308-8742
Original Article
Evaluation of Peripheral Blood Smear for Myelodysplasia in Breast Cancer Patients who Received Adjuvant Antracycline
1 Department of Medical Oncology, Kayseri Education and Research Hospital, Kayseri, Turkey  
2 Department of Radiation Oncology, Mersin Govermant Hospital, Mersin, Turkey  
3 Department of Hematology, Kayseri Education and Research Hospital, Kayseri, Turkey  
4 Department of Internal Medicine, Kayseri Education and Research Hospital, Kayseri, Turkey  
Eurasian J Med 2011; 43: 173-176
DOI: 10.5152/eajm.2011.36
Key Words: Anthracycline, Breast cancer, Chemotherapy side effect, Leukemia, Myelodysplasia
Abstract

 

Objective: Therapy-related myeloid neoplasms (t-MN) account for approximately 10% to 20% of all cases of AML (acute myeloid leukemia), MDS (myelodysplastic syndrome) and MDS/MPN (myelodysplastic syndrome/myeloproliferative neoplasms), MDS, and MDS/MPN. In our study, we evaluated peripheral blood smear samples and hemogram values in breast cancer patients who were receiving adjuvant anthracycline regimens and were in remission.

Materials and Methods: A total of 78 patients receiving anthracycline-based adjuvant chemotherapy treatment from Kayseri Research and Training Hospital and Mersin State Hospital were enrolled in the study. Their adjuvant treatments had been completed at least 18 months prior to the study.

Results: Two patients complained of anemia (2.2%) (Hb<11 mg/dl), leukopenia was observed in seven patients (7.7%) (leukocytes<4000/mm3), and thrombocytopenia was observed in four patients (4.4%) (PLT<150.000/mm3). In the blood smear samples, the following were observed: ovalomacrocytes (14%), macrocytes (37%), acanthocytes (1%), stomatocytes (12%), teardrops (12%), nucleated erythrocytes (1%), basophilic stippling (14%), and Howell-Jolly bodies (1%). Additionally, hypo-granulation (38%), Pelger-Huet abnormalities (26%), hypersegmentation (20%), immature granulocytes (8%), and blasts (6%) were observed. We also confirmed the presence of giant platelets (50%) and platelet hypogranulation (19%).

Conclusion: According to the peripheral blood smear assessments in our study, we suggest that breast cancer patients should be evaluated for MDS in the early stages, starting from month 18, even if the automated blood counts are normal.

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