Open Access

Clinical diagnosis of adult patients with acute megakaryocytic leukemia

  • Authors:
    • Guangjie Zhao
    • Wanling Wu
    • Xiaoqin Wang
    • Jingwen Gu
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  • Published online on: September 25, 2018     https://doi.org/10.3892/ol.2018.9501
  • Pages: 6988-6997
  • Copyright: © Zhao et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Acute megakaryocytic leukemia (AMKL) is a rare subtype of acute myeloid leukemia (AML), which is challenging to diagnose due to frequent myelofibrosis (MF) and a low percentage of blast cells. In the present study, clinical characteristics and experimental observations in 9 adult patients diagnosed with AMKL, who were recruited by the Sino‑U.S. Shanghai Leukemia Co‑operative Group, were analyzed in order to summarize the diagnostic experience and provide recommendations on diagnosing AMKL. All the patients were diagnosed according to the 2008 World Health Organization diagnostic criteria. The mean age of the patients with AMKL was 59 years (range, 53‑68 years). A total of 8 patients had different degrees of anemia, and 2 patients had <5% marrow blasts present in the bone marrow; however, the percentage of positive cells with cluster of differentiation (CD)41 and CD61 expression was >20%, as demonstrated by flow cytometry. A total of 6 patients were positive for platelet‑specific antigens, as indicated by immunocytochemistry. Furthermore, 7 patients presented with moderate or marked MF, as demonstrated by a bone marrow biopsy. Karyotypic analysis indicated that 6 patients had abnormal karyotypes. Only 1 patient exhibited the Janus kinase 2V617F mutation. Treatment efficiency was notably poor, with a median survival time of 6.0 months (range, 1.1‑24.0 months). In conclusion, the diagnosis of AMKL requires a combination of the results of bone marrow smears and bone marrow biopsy, immunophenotype or immunohistochemistry. We recommend that routine immunophenotypic analysis should include the CD41 and CD61 markers for diagnosing acute leukemia when bone marrow morphology does not indicate the diagnosis.
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December-2018
Volume 16 Issue 6

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Spandidos Publications style
Zhao G, Wu W, Wang X and Gu J: Clinical diagnosis of adult patients with acute megakaryocytic leukemia. Oncol Lett 16: 6988-6997, 2018.
APA
Zhao, G., Wu, W., Wang, X., & Gu, J. (2018). Clinical diagnosis of adult patients with acute megakaryocytic leukemia. Oncology Letters, 16, 6988-6997. https://doi.org/10.3892/ol.2018.9501
MLA
Zhao, G., Wu, W., Wang, X., Gu, J."Clinical diagnosis of adult patients with acute megakaryocytic leukemia". Oncology Letters 16.6 (2018): 6988-6997.
Chicago
Zhao, G., Wu, W., Wang, X., Gu, J."Clinical diagnosis of adult patients with acute megakaryocytic leukemia". Oncology Letters 16, no. 6 (2018): 6988-6997. https://doi.org/10.3892/ol.2018.9501