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      Emergence of BCR-ABL1 Chronic Myeloid Leukemia in a JAK2-V617F Polycythemia Vera

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          Abstract

          Emergence of a new chronic myeloid neoplasm in the setting of a previous one, or their concomitant appearance seems to be a rare event, but plenty of cases have been reported. We describe the case of a patient with JAK2-V617F polycythemia vera, which looses JAK2 clone and develops overt BCR-ABL1 chronic myeloid leukemia after 6 years. Once treatment with tyrosine kinase inhibitors controls BCR-ABL1 clone, JAK2 clone arises again. In this report, we review the literature and discuss the clonal relationship of this event in light of the new molecular data.

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          Most cited references41

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          Polycythemia vera and essential thrombocythemia: 2017 update on diagnosis, risk-stratification, and management.

          Polycythemia Vera (PV) and essential thrombocythemia (ET) are myeloproliferative neoplasms respectively characterized by erythrocytosis and thrombocytosis; other disease features include leukocytosis, splenomegaly, thrombosis, bleeding, microcirculatory symptoms, pruritus, and risk of leukemic or fibrotic transformation.
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            Myelofibrosis evolving during imatinib treatment of a chronic myeloproliferative disease with coexisting BCR-ABL translocation and JAK2V617F mutation.

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              JAK2-V617F mutation in a patient with Philadelphia-chromosome-positive chronic myeloid leukaemia.

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                Author and article information

                Journal
                J Hematol
                J Hematol
                Elmer Press
                Journal of Hematology
                Elmer Press
                1927-1212
                1927-1220
                April 2020
                23 April 2020
                : 9
                : 1-2
                : 23-29
                Affiliations
                [a ]Catedra de Hematologia, Hospital de Clinicas, Montevideo 11300, Uruguay
                [b ]Departamento Basico de Medicina, Hospital de Clinicas, Montevideo 11300, Uruguay
                Author notes
                [c ]Corresponding Author: Mariana Lorenzo, Hematology Department, Hospital de Clinicas Av Italia SN, Montevideo 11300, Uruguay. Email: marilorenzo44@ 123456gmail.com
                Article
                10.14740/jh591
                7188376
                32362982
                3a058a32-acf7-4452-ba7a-9eb9a7068b21
                Copyright 2020, Lorenzo et al.

                This article is distributed under the terms of the Creative Commons Attribution Non-Commercial 4.0 International License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 26 November 2019
                : 27 February 2020
                Categories
                Case Report

                chronic myeloid leukemia,chronic myeloproliferative neoplasm,bcr-abl1,jak2-v617f

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